Color which, like music, is a matter of vibrations, reaches what is most general and therefore most indefinable in nature: its inner power.

Brave as you may be, wise even as you may be, you tremble when the earth trembles. That is a sensation common to everybody and which no one would ever deny.

All the joys—animal and human—of a free life are mine. I have escaped everything that is artificial, conventional, customary. I am entering into the truth, into nature.

Wherever I go I need a period of incubation so that I may learn the essence of nature, which never wishes to be understood or yield herself.

I plunged eagerly and passionately into the wilderness, as if in the hope of thus penetrating into the very heart of this Nature, powerful and maternal, there to blend with her living elements.