Bill Nye has many feathers in his cap — he's the CEO of The Planetary Society, has a brand-new Netflix show, flew on Air Force One with President Obama, has at least six honorary doctorate degrees and two books to his name — but there's thing one he's most proud of, and he shares it with Tracey, a 19-year-old student just beginning her science studies at college. As she steps into a lifelong pursuit of science, Nye advises her on the greatest contribution scientists can make to their community. Dropping awe-inspiring facts and publishing groundbreaking findings are exciting parts of being a scientist but the greatest contribution a scientist can make is to educate people — especially kids from a young age — about the scientific method. Carl Sagan, Bill Nye's mentor, can explain this in better words than anyone: "Science is more than a body of knowledge, it’s a way of thinking, a way of skeptically interrogating the universe with a fine understanding of human fallibility. If we are not able to ask skeptical questions, to interrogate those who tell us something is true, to be skeptical of those in authority, then we’re up for grabs for the next charlatan — political or religious — who comes ambling along. The people have to be educated, and they have to practice their skepticism and their education otherwise we don’t run the government, the government runs us." Bill Nye's most recent book is Unstoppable: Harnessing Science to Change the World.