The deepest theorems in mathematics often have the simplest statements.
数学中最深刻的定理往往有最简单的表述。
聪明人的特点是,他们在愚蠢的人看来就像疯子。
Death has its revelations: the great sorrows which open the heart open the mind as well.
The pursuit of truth is the noblest endeavor of mankind.
我总是告诉我的学生,犯错是可以的,只要你从中学习。