The realization of the self is only possible if one is productive, if one can give birth to one's own potentialities.

The Primal Plant is going be the strangest creature in the world, which Nature herself must envy me. With this model and the key to it, it will be possible to go on for ever inventing plants and know that their existence is logical; that is to say, if they do not actually exist, they could, for they are not the shadowy phantoms of a vain imagination, but possess an inner necessity and truth. The same law will be applicable to all other living organisms.

Is not the core of nature in the heart of man?

If you start to think of your physical and moral condition, you usually find that you are sick.

Some books seem to have been written, not to teach us anything, but to let us know that the author has known something.

The desire to explain what is simple by what is complex, what is easy by what is difficult, is a calamity.

Nothing tells more about the character of a man than the things he makes fun of.