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.

在数学中，提出问题的艺术必须比解决问题更有价值。

The past, like the future, is indefinite and exists only as a spectrum of possibilities.

在观察的领域里，机遇只偏爱那种有准备的头脑。