In teaching you cannot see the fruit of a day's work. It is invisible and remains so, maybe for twenty years.

Intellect has nothing to do with equality except to respect it as a sublime convention.

The test and the use of man's education is that he finds pleasure in the exercise of his mind.

The truth is, when all is said and done, one does not teach a subject, one teaches a student how to learn it.

The philosophical implication of race-thinking is that by offering us the mystery of heredity as an explanation, it diverts our attention from the social and intellectual factors that make up personality.

Vanity is a static thing. It puts it faith in what it has, and is easily wounded. Pride is active, and satisfied only with what it can do, hence accustomed not to feel small stings.

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.