Look closely at those who patronize you. Half are unfeeling, half untaught.

So, lively brisk old fellow, don't let age get you down. White hairs or not, you can still be a lover.

All the knowledge I possess everyone else can acquire, but my heart is all my own.

Everyone only hears what he understands.

Unrest and uncertainty are our lot.

First let a man teach himself, and then he will be taught by others.

Classicism is health, romanticisim is sickness.