学习的最好方式是教学。

"Freedom is not something that anybody can be given. Freedom is something people take, and people are as free as they want to be."

The spread of liberal democracy and the integration of the world economy have created a situation in which the major powers are no longer willing to go to war with one another.

Sustainability isn't a choice anymore; it's our only path forward.

"Truth is not found in the light, but in the shadows we're afraid to explore."

"The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'"

优秀的公司赚取利润，伟大的公司赢得人心。

写作是留下自己一部分的方式。

The past is always tense, the future perfect.

PAC学习框架提供了一种正式的方法来分析学习算法的效率和有效性。