On every stem, on every leaf,... and at the root of everything that grew, was a professional specialist in the shape of grub, caterpillar, aphis, or other expert, whose business it was to devour that particular part.

Where we stand is not as important as the direction in which we are moving.

Between two groups of people who want to make inconsistent kinds of worlds, I see no remedy but force.

Life is painting a picture, not doing a sum.

Any new formula which suddenly emerges in our consciousness has its roots in long trains of thought; it is virtually old when it first makes its appearance among the recognized growths of our intellect.

Systems die; instincts remain.

Carve every word before you let it fall.