Don't preach too much to your pupils or abound in good talk in the abstract. Lie in wait rather for the practical opportunities, be prompt to seize those as they pass, and thus at one operation get your pupils both to think, to feel, and to do.

Emotional occasions, especially violent ones, are extremely potent in precipitating mental rearrangements. The sudden and explosive ways in which love, jealousy, guilt, fear, remorse, or anger can seize upon one are known to everybody. . . . And emotions that come in this explosive way seldom leave things as they found them.

There can be no final truth in ethics any more than in physics, until the last man has had his experience and said his say.

A man has as many social selves as there are individuals who recognize him.

A winner's attitude: it may be difficult, but it's possible. A loser's attitude: It may be possible, but it's too difficult.

Man lives in only one small room of the enormous house of his consciousness.

Why should we think upon things that are lovely? Because thinking determines life. It is a common habit to blame life upon the environment. Environment modifies life but does not govern life. The soul is stronger than its surroundings.