Can't find meaning in your life? A new study has the next best thing.
The search for meaning in our lives is one of the great driving forces of human history. Viktor Frankl based his psychology on that search. Existentialism is based mainly on the need for meaning. As anybody who has had an existential crisis or three knows, not having meaning in your life can cause anxiety, dread, fear, and loathing.
Some philosophers have tried to base morality on human nature, but what does biology say about that?
In his 1945 public lecture 'Existentialism is a Humanism' Jean-Paul Sartre made a bold claim: for human beings, existence precedes essence. We exist, then we choose how to be. This is as opposed to a chair, for example, which is designed to fit a particular purpose and then brought into existence to fulfill that purpose. The chair has an essence that precedes it; it has a "chair nature" that it is created to conform to.