All theory is gray, my friend. But forever green is the tree of life.

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You can easily judge the character of a man by how he treats those who can do nothing for him.

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One ought, every day at least, to hear a little song, read a good poem, see a fine picture, and, if it were possible, to speak a few reasonable words.

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As soon as you trust yourself, you will know how to live.

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There is nothing more frightful than ignorance in action.

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I have possessed that heart, that noble soul, in whose presence I seemed to be more than I really was, because I was all that I could be.

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Things which matter most must never be at the mercy of things which matter least.

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A man sees in the world what he carries in his heart.

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If you treat an individual as he is, he will remain how he is. But if you treat him as if he were what he ought to be and could be, he will become what he ought to be and could be.

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What you get by achieving your goals is not as important as what you become by achieving your goals.

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