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Happiness， like unhappiness， is a proactive choice.

In manufacturing, efficiency and environmental responsibility must go hand in hand.

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.

To feed the world, we must first learn to listen to the earth.