Intuition is a method of feeling one's way intellectually into the inner heart of a thing to locate what is unique and inexpressible in it.

If reality impacted directly on our senses and our consciousness, if we could have direct communication between the material world and ourselves, art would be unnecessary.

The emotion felt by a man in the presence of nature certainly counts for something in the origin of religions.

To perceive means to immobilize. To say this is to say that we seize, in the act of perception, something which outruns perception itself.

Europe is overpopulated, the world will soon be in the same condition, and if the self-reproduction of man is not rationalized... we shall have war.

Instinct perfected is a faculty of using and even constructing organized instruments; intelligence perfected is the faculty of making and using unorganized instruments.

To ease another's burden, help to carry it.