The value of freedom is truly understood only when lost.

Pain can be a form of knowledge.

The greatest education in the world is watching the masters at work.

Concerning the gods, I have no means of knowing whether they exist or not or of what sort they may be, because of the obscurity of the subject, and the brevity of human life.

We made gods of men and they leave us. Others make brutes of them and they fawn and are faithful.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.