The most important thing in mathematics is to understand the concepts, not just to memorize formulas.

I write to understand, to grasp the reality that escapes me.

我不认为自己是一个对答案感兴趣的作家。我对问题感兴趣。

The best way to live is to love what you do.

Life has to be given a meaning because of the obvious fact that it has none.

He walked out in the gray light and stood and he saw for a brief moment the absolute truth of the world. The cold relentless circling of the intestate earth. Darkness implacable. The blind dogs of the sun in their running. The crushing black vacuum of the universe. And somewhere two hunted animals trembling like ground-foxes in their cover. Borrowed time and borrowed world and borrowed eyes with which to sorrow it.