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When you want to help people, you tell them the truth. When you want to help yourself, you tell them what they want to hear.

Small changes can have big effects when they help people break out of the poverty trap.

被大膽說出的預(yù)言，從來不會被迷信的人認(rèn)為是愚笨無趣的。

Science is the knowledge of consequences, and dependence of one fact upon another.

如果允許我們在這個世界上長生不老，試問誰愿意接受這件不吉祥的禮物？