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最艱難的決定往往需要在短期收益和長期影響之間取得平衡。

A book is a version of the world. If you do not like it, ignore it; or offer your own version in return.

You control your future, your destiny. What you think about comes about. By recording your dreams and goals on paper, you set in motion the process of becoming the person you most want to be. Put your future in good hands — your own.

The ideal of behaviorism is to eliminate coercion: to apply controls by changing the environment in such a way as to reinforce the kind of behavior that benefits everyone.

你必須無畏地追求讓你靈魂燃燒的東西。

你可以撼動星辰。你可以做任何事，只要你敢。而在內(nèi)心深處，你也知道這一點。這就是最讓你害怕的地方。

人類唯一需要恐懼的，就是恐懼本身。