Our ignorance of history causes us to slander our own times.

Nothing is more humiliating than to see idiots succeed in enterprises we have failed in.

The most glorious moments in your life are not the so-called days of success, but rather those days when out of dejection and despair you feel rise in you a challenge to life, and the promise of future accomplishments.

All one's inventions are true, you can be sure of that. Poetry is as exact a science as geometry.