事实是，我们直到看到它才知道自己想要什么。

To overcome the anxieties and depressions of contemporary life, individuals must become independent of the social environment to the degree that they no longer respond exclusively in terms of its rewards and punishments.

I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.

贪图未必成功的事业，不如坚守已成的事业。

I write in blood because I remember what it felt like to bleed.