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A man's worth is no greater than the worth of his ambitions.

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A man's happiness: to do the things proper to man.

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The one thing worth living for is to keep one's soul pure.

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Without a purpose nothing should be done.

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Even the least of our activities ought to have some end in view.

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Your days are numbered. Use them to throw open the windows of your soul to the sun. If you do not, the sun will soon set, and you with it.