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10 schools of philosophy and why you should know them
There are many famous schools of thought that you have probably heard of, but did you hear the truth or just get a caricature of the idea?
For your reading pleasure, here are ten schools of philosophy you should know about. Some of them are commonly misunderstood, and we correct that problem here.
The leading philosophy among angsty teens who misunderstand Nietzsche.
The root of the word 'nihilism' is derived from the Latin nihil, meaning "nothing", and it is a more of a series of related positions and problems than a single school of thought. The key idea of it is the lack of belief in meaning or substance in an area of philosophy. For example, moral nihilism argues that moral facts cannot exist; metaphysical nihilism argues that we cannot have metaphysical facts; existential nihilism is the idea that life cannot have meaning and nothing has value—this is the kind that most people think of when they hear the word.
As opposed to popular understanding, Nietzsche was not a nihilist. Rather, he wrote about the dangers posed by nihilism and offered solutions to them. Real nihilists included the Russian nihilist movement.
The leading philosophy among angsty undergraduates who understand Nietzsche.
Existentialism is a school of thought originating in the work of Soren Kierkegaard and Nietzsche. Existentialism focuses on the problems posed by existential nihilism. What is the point of living if life has no inherent purpose, where can we find value after the death of God, and how do we face the knowledge of our inevitable demise? Existentialists also ask questions about free will, choice, and the difficulties of being an individual.
The existentialists also included Jean-Paul Sartre, Simone de Beauvoir, and Martin Heidegger. Albert Camus was associated with the movement, but considered himself independent of it.
A philosophy popular in ancient Greece and Rome, and practiced today by many people in high-stress environments.
Stoicism is a school that focuses on how to live in a world where things don’t go your way. Is it raining when you just waxed your car? Accept it. Does the lady at the desk next to you sound like a dying cat when she speaks? Accept it, and move on to the next problem. The idea at the heart of it is acceptance of all things that are beyond your control. Pain will pass, you will remain, so the best thing to do is focus on what you can control.
Famed stoics included Zeno of Citium, Seneca, and Marcus Aurelius. Today many athletes rely on stoicism to help them focus on their performance during games, rather than how the other team is doing.
Hedonism is the idea that pleasure or happiness is the one thing with intrinsic value. This idea has been held by many other schools across history, most famously the utilitarians. While happiness is often construed as pleasure and the green light is often given to depravity by this school, Greek thinker Epicurus was also a hedonist and tied it to a virtue ethics system based around moderation. He argued that moderation lead to the most happiness for the individual in the long run.
The word “hedonistic”, when used as a slur, relates to this school only in that many hedonistic thinkers also saw pleasure as the key to a good life. Many hedonistic philosophers viewed pleasure as a kind of happiness, but few held it as the “only” happiness. Most hedonistic philosophers would say you should read a book rather than get drunk, as reading is a higher kind of happiness than getting snockered.
Famous hedonists include Jeremy Bentham, Epicurus, and Michel Onfray. Hedonism is also the oldest philosophy recorded, making an appearance in The Epic of Gilgamesh.
Marxism is a school based on the collected ideas of Karl Marx, the 19th century German philosopher, and the related ideas others have added after his death. His key ideas are all critiques of capitalism, such as the idea that the capitalist mode of production alienates us from the results of our labor, the tendency of capitalism to overproduce and crash as a result, and the labor theory of value. He also proposed a few ideas to help fix the problems he found in capitalism, many of them less radical than you might suppose.
Cultural Marxism is a thing, but not what your crazy uncle says it is. In reality, it is a method of critiquing a consumerist society for reducing everything to a commodity and the phenomena of mass marking reaching into all parts of our lives which was proposed by German philosophers who didn’t like the Soviet system either. I am sure the comments section will disagree with this fact passionately.
Famed Marxists include Lenin, Stalin, Mao, and Slavoj Zizek; though all of the listed individuals have been called heretics at one point or another by other Marxists. Ironically, Marx himself claimed to not be one.
Have you ever wondered if we can base absolutely everything on logic and empirical evidence?
The logical positivists had a good try—until they found it a dead end. This school was popular in the 1920s and '30s, and was focused on the idea of verifications, which sought to base all knowledge on either empirical data or logical tautologies. By this idea, metaphysics, ethics, theology, and aesthetics cannot be studied philosophically as they don’t offer ideas with truth values. As it turns out the core tenet of verificationism cannot be shown to be true either, posing an unsolvable problem for the school.
The school was largely unsuccessful in its work, and suffered a major blow when Ludwig Wittgenstein denounced his previous work in favor of the school’s ideas then utterly changed course. The school still had a great deal of influence, particularly on the work of Karl Popper and Wittgenstein, who worked so hard to disprove the core tenets.
Famed members of the movement included Bertrand Russell, Ludwig Wittgenstein, and the Vienna Circle. All of them were brilliant, and after the decline of the school most of them went on to other projects.
Taoism is a school of thought based around the Tao Te Ching, written by the ancient Chinese philosopher Lao-Tzu as he left China to live as a hermit. Taoism is based around ideas of humility, the 'Way', a focus on the individual, simplicity, and naturalness. It is commonly practiced as a folk religion by the Chinese, and Taoists often make offerings to various gods.
Taoist thought would later fuse with Buddhism and birth of Zen. Elements of it would also be incorporated into the concept of Neo-Confucianism. The principles of Taoism would also resonate with physicist Niels Bohr who admired Taoism’s ability to view opposites as complementary.
If our senses are often wrong, how can we ever trust them to get reality right? This is the key tenet of rationalism, the idea that knowledge must come primarily from reason and thought, rather than empirical evidence.
The idea has been widespread in history. Thinkers who argued for rationalism included Socrates, Rene Descartes, and Spinoza. Their view, that reason alone could reveal the great truths of the world, has largely fallen out of use in favor of a more diverse group of methods for finding truth. British philosopher Galen Strawson explained the limit of rationalist approaches to knowledge when he explained, "you can see that it is true just lying on your couch. You don't have to get up off your couch and go outside and examine the way things are in the physical world. You don't have to do any science." Convenient, but no longer enough. Today, most thinkers combine rationalist notions with empirical data.
Relativism is the idea that views are relative to perspective or considerations. This idea can even be applied to morality or truth itself, with some arguing then that there are no moral facts or absolute truths. Similarly, situational relativism is an idea in ethics where a rule is to be followed under all conditions except for some, when we would then follow another rule. For example, don’t kill unless you would save lives by doing so. This idea, in a revised form, was supported by American philosopher Robert Nozick in his book Anarchy, State, and Utopia.
Most of you are probably familiar with the idea of “cultural relativism” which is the notion that the morality of two differing cultures cannot be compared and a person outside of one culture cannot critique the values and morality of another. This idea is not held by any major philosophers, and is generally seen as self-defeating by those who work in ethics.
A religion based around the teachings of Gautama Buddha, an Indian prince, Buddhism is dedicated to the idea that suffering has a cause and that we can overcome it by means of mediation, following the noble eightfold path, and contemplation of sutras.
The many schools of Buddhism are rather diverse in their thought, bound together primarily by the Buddha’s ideas on suffering. Some are non-theistic while others have a pantheon of gods and demons. Some hold that karma exists and reincarnation is a part of life while others reject any discussion of an afterlife. Most are peaceful while others… not so much. In the west, Buddhist ideas on meditation are often widely shared while other elements of the religion are ignored.
All this from a wad of gum?
- Researchers recently uncovered a piece of chewed-on birch pitch in an archaeological dig in Denmark.
- Conducting a genetic analysis of the material left in the birch pitch offered a plethora of insights into the individual who last chewed it.
- The gum-chewer has been dubbed Lola. She lived 5,700 years ago; and she had dark skin, dark hair, and blue eyes.
Five thousand and seven hundred years ago, "Lola" — a blue-eyed woman with dark skin and hair — was chewing on a piece of pitch derived from heating birch bark. Then, this women spit her chewing gum out into the mud on an island in Denmark that we call Syltholm today, where it was unearthed by archaeologists thousands of years later. A genetic analysis of the chewing gum has provided us with a wealth of information on this nearly six-thousand-year-old Violet Beauregarde.
This represents the first time that the human genome has been extracted from material such as this. "It is amazing to have gotten a complete ancient human genome from anything other than bone," said lead researcher Hannes Schroeder in a statement.
"What is more," he added, "we also retrieved DNA from oral microbes and several important human pathogens, which makes this a very valuable source of ancient DNA, especially for time periods where we have no human remains."
In the pitch, researchers identified the DNA of the Epstein-Barr virus, which infects about 90 percent of adults. They also found DNA belonging to hazelnuts and mallards, which were likely the most recent meal that Lola had eaten before spitting out her chewing gum.
Insights into ancient peoples
The birch pitch was found on the island of Lolland (the inspiration for Lola's name) at a site called Syltholm. "Syltholm is completely unique," said Theis Jensen, who worked on the study for his PhD. "Almost everything is sealed in mud, which means that the preservation of organic remains is absolutely phenomenal.
"It is the biggest Stone Age site in Denmark and the archaeological finds suggest that the people who occupied the site were heavily exploiting wild resources well into the Neolithic, which is the period when farming and domesticated animals were first introduced into southern Scandinavia."
Since Lola's genome doesn't show any of the markers associated with the agricultural populations that had begun to appear in this region around her time, she provides evidence for a growing idea that hunter-gatherers persisted alongside agricultural communities in northern Europe longer than previously thought.
Her genome supports additional theories on northern European peoples. For example, her dark skin bolsters the idea that northern populations only recently acquired their light-skinned adaptation to the low sunlight in the winter months. She was also lactose intolerant, which researchers believe was the norm for most humans prior to the agricultural revolution. Most mammals lose their tolerance for lactose once they've weaned off of their mother's milk, but once humans began keeping cows, goats, and other dairy animals, their tolerance for lactose persisted into adulthood. As a descendent of hunter-gatherers, Lola wouldn't have needed this adaptation.
A hardworking piece of gum
A photo of the birch pitch used as chewing gum.
These findings are encouraging for researchers focusing on ancient peoples from this part of the world. Before this study, ancient genomes were really only ever recovered from human remains, but now, scientists have another tool in their kit. Birch pitch is commonly found in archaeological sites, often with tooth imprints.
Ancient peoples used and chewed on birch pitch for a variety of reasons. It was commonly heated up to make it pliable, enabling it to be molded as an adhesive or hafting agent before it settled. Chewing the pitch may have kept it pliable as it cooled down. It also contains a natural antiseptic, and so chewing birch pitch may have been a folk medicine for dental issues. And, considering that we chew gum today for no other reason than to pass the time, it may be that ancient peoples chewed pitch for fun.
Whatever their reasons, chewed and discarded pieces of birch pitch offer us the mind-boggling option of learning what someone several thousands of years ago ate for lunch, or what the color of their hair was, their health, where their ancestors came from, and more. It's an unlikely treasure trove of information to be found in a mere piece of gum.
The non-contact technique could someday be used to lift much heavier objects — maybe even humans.
- Since the 1980s, researchers have been using sound waves to move matter through a technique called acoustic trapping.
- Acoustic trapping devices move bits of matter by emitting strategically designed sound waves, which interact in such a way that the matter becomes "trapped" in areas of particular velocity and pressure.
- Acoustic and optical trapping devices are already used in various fields, including medicine, nanotechnology, and biological research.
Sound can have powerful effects on matter. After all, sound strikes our world in waves — vibrations of air molecules that bounce off of, get absorbed by, or pass through matter around us. Sound waves from a trained opera singer can shatter a wine glass. From a jet, they can collapse a stone wall. But sound can also be harnessed for delicate interactions with matter.
Since the 1980s, researchers have been using sound to move matter through a phenomenon called acoustic trapping. The method is based on the fact that sound waves produce an acoustic radiation force.
"When an acoustic wave interacts with a particle, it exerts both an oscillatory force and a much smaller steady-state 'radiation' force," wrote the American Physical Society. "This latter force is the one used for trapping and manipulation. Radiation forces are generated by the scattering of a traveling sound wave, or by energy gradients within the sound field."
When tiny particles encounter this radiation, they tend to be drawn toward regions of certain pressure and velocity within the sound field. Researchers can exploit this tendency by engineering sound waves that "trap" — or suspend — tiny particles in the air. Devices that do this are often called "acoustic tweezers."
Building a better tweezer
A study recently published in the Japanese Journal of Applied Physics describes how researchers created a new type of acoustic tweezer that was able to lift a small polystyrene ball into the air.
Tweezers of Sound: Acoustic Manipulation off a Reflective Surface youtu.be
It is not the first example of a successful "acoustic tweezer" device, but the new method is likely the first to overcome a common problem in acoustic trapping: sound waves bouncing off reflective surfaces, which disrupts acoustic traps.
To minimize the problems of reflectivity, the team behind the recent study configured ultrasonic transducers such that the sound waves that they produce overlap in a strategic way that is able to lift a small bit of polystyrene from a reflective surface. By changing how the transducers emit sound waves, the team can move the acoustic trap through space, which moves the bit of matter.
Move, but don't touch
So far, the device is only able to move millimeter-sized pieces of matter with varying degrees of success. "When we move a particle, it sometimes scatters away," the team noted. Still, improved acoustic trapping and other no-contact lifting technologies — like optical tweezers, commonly used in medicine — could prove useful in many future applications, including cell separation, nanotechnologies, and biological research.
Could future acoustic-trapping devices lift large and heavy objects, maybe even humans? It seems possible. In 2018, researchers from the University of Bristol managed to acoustically trap particles whose diameters were larger than the sound wavelength, which was a breakthrough because it surpassed "the classical Rayleigh scattering limit that has previously restricted stable acoustic particle trapping," the researchers wrote in their study.
In other words, the technique — which involved suspending matter in tornado-like acoustic traps — showed that it is possible to scale up acoustic trapping.
"Acoustic tractor beams have huge potential in many applications," Bruce Drinkwater, co-author of the 2018 study, said in a statement. "I'm particularly excited by the idea of contactless production lines where delicate objects are assembled without touching them."
Australian parrots have worked out how to open trash bins, and the trick is spreading across Sydney.
- If sharing learned knowledge is a form of culture, Australian cockatoos are one cultured bunch of birds.
- A cockatoo trick for opening trash bins to get at food has been spreading rapidly through Sydney's neighborhoods.
- But not all cockatoos open the bins; some just stay close to those that do.
Dumpster-diving trash parrots
In a study about these smart birds just published in Science, researchers define animal culture as "population-specific behaviors acquired via social learning from knowledgeable individuals."
Co-lead author of the study Barbara Klump of the Max Planck Institute of Animal Behavior in Konstanz, Germany says, "[C]ompared to humans, there are few known examples of animals learning from each other. Demonstrating that food scavenging behavior is not due to genetics is a challenge."
An opportunity presented itself in a video that co-author Richard Major of the Australian Museum shared with Klump and the other co-authors. In the video, a sulphur-crested cockatoo used its beak to pull up the handle of a closed garbage bin — using its foot as a wedge — and then walked back the lid sufficiently to flip it open, exposing the bin's edible contents.
Major has been studying Cacatua galerita for 20 years and says, "Like many Australian birds, sulphur-crested cockatoos are loud and aggressive." The study describes them as a "large-brained, long-lived, and highly social parrot." Says Major, "They are also incredibly smart, persistent, and have adapted brilliantly to living with humans."(Research regarding some of the ways in which wild animals adapt to the presence of humans has already produced some fascinating results and is ongoing.)
Clever cockie opens bin - 01 youtu.be
The researchers became curious about how widespread this behavior might be and saw a research opportunity. After all, says John Martin, a researcher at Taronga Conservation Society, "Australian garbage bins have a uniform design across the country, and sulphur-crested cockatoos are common across the entire east coast."
Martin continues, "In 2018, we launched an online survey in various areas across Sydney and Australia with questions such as, 'What area are you from, have you seen this behavior before, and if so, when?'"
Word gets around
Credit: magspace/Adobe Stock
Although the cockatoos' maneuver was reported in only three suburbs before 2018, by the end of 2019, people in 44 areas reported observing the behavior. Clearly, more and more cockatoos were learning how to successfully dumpster dive.
As further proof, says Klump, "We observed that the birds do not open the garbage bins in the same way, but rather used different opening techniques in different suburbs, suggesting that the behavior is learned by observing others." One individual bird in north Sydney invented its own method, and the scientists saw it grow in popularity throughout the local population.
To track individual birds, the researchers marked 500 cockatoos with small red dots. Subsequent observations revealed that not all cockatoos are bin-openers. Only about 10 percent of them are, and they are mostly males. The other cockatoos apparently restrict their education to a different lesson: hang around with a bin-opener, and you will get supper.
Thanks to the surveys, the researchers consider the entire project to be a valuable citizen-science experiment. "By studying this behavior with the help of local residents, we are uncovering the unique and complex cultures of their neighborhood birds."
The few seconds of nuclear explosion opening shots in Godzilla alone required more than 6.5 times the entire budget of the monster movie they ended up in.