Be yourself and think for yourself, and while your conclusions may not be infallible they will be nearer right than the inclusions forced upon you by those who have a personal interest in keeping you in ignorance.

Academic education is the act of memorizing things read in books, and things told by college professors who got their education mostly by memorizing things read in books.

Do not dump your woes upon people — keep the sad story of your life to yourself. Troubles grow by recounting them.

Men are only as great as they are kind.

In the Life of Darwin by his son, there is related an incident of how the great naturalist once studied long as to just what a certain spore was. Finally he said, "It is this, for if it isn't, then what is it?" And all during his life he was never able to forget that he had been guilty of this unscientific attitude, for science is founded on certitude, not assumption.

Study: concentration of the mind on whatever will ultimately put something in your pocket.

If you can't answer a man's arguments, all is not lost; you can still call him vile names.