All the higher, more penetrating ideals are revolutionary. They present themselves far less in the guise of effects of past experience than in that of probable causes of future experience, factors to which the environment and the lessons it has so far taught us must learn to bend.

Tension is a habit. Relaxing is a habit. Bad habits can be broken, good habits formed.

The first thing that intellect does with an object is to class it with something else.

We can change our circumstances by a mere change of our attitude.

Philosophy is at once the most sublime and the most trivial of human pursuits.

Do every day or two something for no other reason than its difficulty.

The word 'cause' is an altar to an unknown god.