Everyone who works with love and with intelligence finds in the very sincerity of his love for nature and art a kind of armor against the opinions of other people.

But by fighting the difficulties in which one finds oneself, an inner strength develops from within our heart, which improves in life's fight.

I don't know anything with certainty, but seeing the stars makes me dream.

Surely the true path is to dive deep into nature.

When we are working at a difficult task and strive after a good thing, we are fighting a righteous battle, the direct reward of which is that we are kept from much evil.

The diseases that we civilized people labor under most are melancholy and pessimism.

What a simple thing death is, just as simple as the falling of an autumn leaf.