The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.
数学家的模式，就像画家或诗人的模式一样，必须是美丽的；思想，就像颜色或文字一样，必须以和谐的方式结合在一起。
What can be shown, cannot be said.
It is a terrible thing for a man to find out suddenly that all his life he has been speaking nothing but the truth.
Knowledge is the highest wealth of humanity, and sharing knowledge is the greatest generosity.
The bank is not a pawnshop, the bank is a credit intermediary.
The meaning of a word is its use in the language.
History is neither written nor made without love or hate.