It is difficult to free fools from the chains they revere.
Judge a man by his questions rather than his answers.
Verses which do not teach men new and moving truths do not deserve to be read.
One always begins with the simple, then comes the complex, and by superior enlightenment one often reverts in the end to the simple. Such is the course of human intelligence.
Doubt is not a very agreeable status, but certainty is a ridiculous one.
What a pessimist you are!" exclaimed Candide. "That is because I know what life is," said Martin.