随机实验是因果推理的黄金标准,但它们并不总是可行的。
哲学问题的形式是:‘我不知道我该怎么做。’
我是个糟糕的撒谎者,所以我写歌。
夜未央,我亦未央。
好的设计是解决问题,而不仅仅是让事物看起来好看。
The uniform, constant, and uninterrupted effort of every man to better his condition, the principle from which public and national as well as private opulence is originally derived.