“INTEREST. Here is the key to the whole thing. If and when you are truly interested in what you are doing, or are about to do, then you will center your attention on it with little or no effort, and...”

“In the endeavor to establish a difficult habit, for example, mere wishing will never carry it to a successful conclusion; our wishing must rise to the level of WANTING if this goal is to be achieved.”

“Too much stress cannot be laid...upon the admonition that we seek so far as possible to live in the lives of other people. By sharing in the misfortunes of others, and rejoicing in their happiness,...”

“Even the best inborn potentialities for achievement do not render unnecessary patient and persistent practice.”

“The confidence essential to effective habit-making comes as a rule from knowledge of previous and related successes.”

“This is the best possible way to retain important details that you wish to remember in any unified field of knowledge, whether it be the field of economics, science, history, or any other--link the...”

“The fool doth think he is wise, but the wise man knows himself to be a fool.”

“The secret of life, though, is to fall seven times and to get up eight times.”

“It is the mark of an educated mind to be able to entertain a thought without accepting it.”