The ascetic is often a sensualist who has reached the limit of his capacity.

In ordinary speech the words perception and sensation tend to be used interchangeably, but the psychologist distinguishes. Sensations are the items of consciousness--a color, a weight, a texture--that we tend to think of as simple and single. Perceptions are complex affairs that embrace sensation together with other, associated or revived contents of the mind, including emotions.

Out of man's mind in free play comes the creation Science. It renews itself, like the generations, thanks to an activity which is the best game of homo ludens: science is in the strictest and best sense a glorious entertainment.

We cannot appreciate the art of any age without first acquiring an equivalent of the experience it depicts.

You never step in the same river of thought twice, because neither you nor it are the same.

Education in the United States is a passion and a paradox. Millions want it, and commend it, and are busy about it. At the same time they degrade it by trying to get it free of charge and free of work.

If it were possible to talk to the unborn, one could never explain to them how it feels to be alive, for life is washed in the speechless real.