"Studying philosophy taught me two things. I learned how to write really clearly. I learned how to follow an argument all the way down, which is invaluable in running meetings. And when I studied the history of science, I learned about the ways that everyone believes something is true--like the old notion of some kind of ether in the air propagating gravitational forces--until they realized that it wasn't true."

- Stewart Butterfield, Co-founder and CEO of Slack