A single day is sufficient for a man to discover what happiness is.

Here is a commandment for you: seek happiness in sorrow. Work, work tirelessly.

Beauty is mysterious as well as terrible. God and devil are fighting there, and the battlefield is the heart of man.

Inventors and geniuses have almost always been looked on as no better than fools at the beginning of their career, and very frequently at the end of it also.

It suddenly seemed to me that I was lonely, that everyone was forsaking me and going away from me.

He who masters the grey everyday is a hero.

A fool with a heart and no sense is just as unhappy as a fool with sense and no heart.