Joy is the holy fire that keeps our purpose warm and our intelligence aglow.

Knowledge is happiness, because to have knowledge - broad, deep knowledge - is to know true ends from false, and lofty things from low.

The heresy of one age becomes the orthodoxy of the next.

No smile is as beautiful as the one that struggles through tears.

What a blind person needs is not a teacher but another self.

This great republic is a mockery of freedom as long as you are doomed to dig and sweat to earn a miserable living while the masters enjoy the fruit of your toil.

Life is a daring adventure or nothing.