One cannot reach so great a secret by one way alone. The surest way to corrupt a youth is to teach him to hold in higher regard those who think alike than those who think differently. We must not believe the many, who say that only free people ought to be educated, but we should rather believe the philosophers who say that only the educated are free. Thought is subversive and revolutionary, destructive and terrible, thought is merciless to privilege, established institutions, and comfortable habit. Thought looks into the pit of hell and is not afraid.
Thought is great and swift and free, the light of the world, and the chief glory of man.
Or you can have freedom. Don't ever count on having both at once. As I stood before the gates I realized that I never want to be as certain about anything as were the people who built this place. To the dead, one owes only the truth. The world owes you nothing.