乐观是一种可以学习的技能。

唯一能让你快乐的是你自己的微笑。

You never know what worse luck your bad luck has saved you from.

想要让人群或醉汉安静下来的话，只需要小点声说话就行。

The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.

The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.

翻译：强调了土地在农业生产中的基础性作用，是万物生长之根本。

在计算学习的背景下，“可能近似正确”（PAC）学习的概念为理解学习算法的效率和可行性提供了一个框架。