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The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather in a lack of will.

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In great attempts it is glorious even to fail.

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The good man is the teacher of the bad,
And the bad is the material from which the good may learn.
He who does not value the teacher,
Or greatly care for the material,
Is greatly deluded although he may be learned.
Such is the essential mystery.

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There is only one thing a philosopher can be relied upon to do, and that is to contradict other philosophers.

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A traveler must have the back of an ass to bear all,
a tongue like the tail of a dog to flatter all,
the mouth of a hog to eat what is set before him,
the ear of a merchant to hear all and say nothing.

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The most incomprehensible thing about the world is that it is at all comprehensible.

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Knowledge is of two kinds: we know a subject ourselves, or we know where we can find information upon it.

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Do not hover always on the surface of things, nor take up suddenly, with mere appearances; but penetrate into the depth of matters, as far as your time and circumstances allow, especially in those things which relate to your profession.

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There is nothing stronger in the world than gentleness.

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A broken bone can heal, but the wound a word opens can fester forever.

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