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Mankind have a great aversion to intellectual labor; but even supposing knowledge to be easily attainable, more people would be content to be ignorant...more

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He that would be superior to external influences must first become superior to his own passions.

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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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When any fit of gloominess or perversion of mind lays hold upon you make it a rule not to publish it by complaints.

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Man is not weak - knowledge is more than equivalent to force. The master of mechanics laughs at strength.

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Despair is criminal.

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To hear complaints is wearisome to the wretched and the happy alike.

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A man must carry knowledge with him if he would bring home knowledge.

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

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He who has so little knowledge of human nature as to seek happiness by changing anything but his own disposition will waste his life in fruitless effo...more

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Self-confidence is the first requisite to great undertakings.

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There is nothing so minute or inconsiderable that I would not rather know it than not know it.

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Ignorance, when voluntary, is criminal, and a man may be properly charged with that evil which he neglected or refused to learn how to prevent.

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Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.