I know how much work it takes to get to the top, but even more to stay there.

The mind is a set of information-processing machines that were designed by natural selection to solve adaptive problems faced by our hunter-gatherer ancestors.

质量会被长久记住，而价格很快被遗忘。

总统的职位是伟大的，但担任这个职位的人并不伟大。

幸福就像一只蝴蝶，当你追逐它时，总是抓不到，但如果你安静地坐下来，它可能会落在你身上。