We amuse ourselves painting our prison-walls with bright figures and brilliant landscapes.

I never knew a more presumptuous person than myself. The fact that I say that shows that what I say is true.

Objects in pictures should so be arranged as by their very position to tell their own story.

What one doesn't understand one doesn't possess.

All sects seem to me to be right in what they assert, and wrong in what they deny.

To tremble before anticipated evils is to bemoan what thou hast never lost.

Some of our weaknesses are born in us, others are the result of education; it is a question which of the two gives us most trouble.