True education is the ability to discern the difference between what you do know and what you don't.

What men call civilization is the condition of present customs; what they call barbarism, the condition of past ones.

Justice is the sanction of established injustice.

Without lies humanity would perish of despair and boredom.

Until you have loved an animal, part of your soul will have remained dormant.

In order that knowledge be properly digested it must have been swallowed with a good appetite.

Of all the ways of defining man, the worst is the one which makes him out to be a rational animal.