Twenty years from now, you will be more disappointed by the things you didn’t do than the ones you did.So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover. （注：这句说话被部分人质疑不是由马克·吐温所说的。）

在观测天文学中，耐心是关键，有些发现需要几十年才能确认。

来吧，一旦你觉得自己懂得了什么，就必须换一种角度来看。这可能显得很荒唐或者愚蠢，但必须试一下。

粮仓充实，民众就能知道礼节；衣食充足，民众就能知道耻辱。

若父子之间缺乏传承与沟通，则家庭难以和谐。

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.

The only way to get rid of a temptation is to yield to it.