Thus every action must be due to one or other of seven causes: chance, nature, compulsion, habit, reasoning, anger, or appetite.

That in the soul which is called the mind is, before it thinks, not actually any real thing.

Excellence is never an accident. It is always the result of high intention, sincere effort, and intelligent execution; it represents the wise choice of many alternatives - choice, not chance, determines your destiny.

Courage is the first of human qualities because it is the quality which guarantees the others.

Happiness depends on ourselves.

That judges of important causes should hold office for life is a questionable thing, for the mind grows old as well as the body.

We can't learn without pain.