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In the long run men hit only what they aim at. Therefore though they should fall immediately they had better aim at something high.

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Not only must we be good but we must also be good for something.

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It is not enough to be busy so are the ants. The question is: What are we busy about?

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If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.