Contemplating the weaknesses of others is easy； contemplating the weaknesses in yourself is hard， but it pays a much higher reward.

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.

解释：本治则国家巩固，本乱则国家危亡。

The past is a place of reference, not a place of residence.

旅行是发现每个人对其他国家的看法都是错误的。

消费者是国王。

你不尝试，就100%会错过机会。

悲观主义者的决定性特征是，他们倾向于相信坏事会持续很长时间，会破坏他们所做的一切，并且是他们自己的错。