Desire is not a thing to be understood. It is a thing to be endured.

The greatest problem of any art is to create a presence.

The value and utility of any experiment are determined by the fitness of the material to the purpose for which it is used.

真正快乐的唯一途径是接受自己，并不断成长和进步。

好奇心是推动科学进步的引擎。

数学是给不同事物赋予相同名称的艺术。