Most men have a good memory for facts connected with their own pursuits.

The deepest human need is the need to be appreciated.

It is so human a book that I don't see how belief in its divine authority can survive the reading of it.

Modern man . . . has not ceased to be credulous . . . the need to believe haunts him.

We forget that every good that is worth possessing must be paid for in strokes of daily effort. We postpone and postpone until those smiling possibilities are dead... By neglecting the necessary concrete labor, by sparing ourselves the little daily tax, we are positively digging the graves of our higher possibilities.

Our theories are wedged and controlled as nothing else is. Yet sometimes alternative theoretic formulas are equally compatible with all the truths we know, and then we choose between them for subjective reasons. We choose the kind of theory to which we are already partial: we follow 'elegenace' or 'economy'

There is a law in psychology that if you form a picture in your mind of what you would like to be, and you keep and hold that picture there long enough, you will soon become exactly as you have been thinking.