The whole conviction of my life now rests upon the belief that loneliness, far from being a rare and curious phenomenon, peculiar to myself and to a few other solitary men, is the central and inevitable fact of human existence.

我们必须不仅仅以利润来衡量成功，还要以影响力来衡量。

缓慢的程度与记忆的强度成正比；速度的程度与遗忘的强度成正比。