What we learn from history is that people don't learn from history.

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.

Any sufficiently advanced technology is indistinguishable from magic.

这种想象力的第一个成果——以及体现它的社会科学的第一个教训——是个人只有将自己置于他所处的时代中，才能理解自己的经历并衡量自己的命运，只有意识到所有处于他这种境况的个体的机会，他才能知道自己的生活机会。

史记

因此美名归于君主，而仇怨由臣下担当；安乐归于君主，而忧患由臣下担当。这就是墨翟所说的忠臣。