I am sure that one secret of a successful teacher is that he has formulated quite clearly in his mind what the pupil has got to know in precise fashion. He will then cease from half-hearted attempts to worry his pupils with memorizing a lot of irrelevant stuff of inferior importance.

With the sense of sight, the idea communicates the emotion, whereas, with sound, the emotion communicates the idea, which is more direct and therefore more powerful.

There are two principles inherent in the very nature of things, recurring in some particular embodiments whatever field we explore - the spirit of change, and the spirit of conservation. There can be nothing real without both. Mere change without conservation is a passage from nothing to nothing. . . . Mere conservation without change cannot conserve. For after all, there is a flux of circumstance, and the freshness of being evaporates under mere repetition.

All practical teachers know that education is a patient process of mastery of details, minute by minute, hour by hour, day by day.

The merely well-informed man is the most useless bore on God's earth.

What is morality in any given time or place? It is what the majority then and there happen to like and immorality is what they dislike.

Youth is life as yet unblemished by much tragedy, but hardly by TV.