Doubt is not a very agreeable state, but certainty is a ridiculous one.
Perfection is attained by slow degrees; it requires the hand of time.
Judge a man by his questions rather than his answers.
It is an infantile superstition of the human spirit that virginity would be thought a virtue and not the barrier that separates ignorance from knowledge.
The more I read, the more I meditate; and the more I acquire, the more I am enabled to affirm that I know nothing.
Love truth, but pardon error.
God is a comedian, playing to an audience too afraid to laugh.
Life is a shipwreck but we must not forget to sing in the lifeboats.
I disapprove of what you say, but I will defend to the death your right to say it.
Judge a man by his questions rather than by his answers.