道人是非长短者通常枯燥乏味,但当他谈起自己时却往往妙趣横生。
The most important thing in mathematics is to understand the concepts, not just to memorize the formulas.
真相不会让你自由,它只会让你看见锁链。
I have always preferred working on concrete problems rather than abstract theories.
Life is like a mirror, if you frown at it, it frowns back; if you smile, it returns the greeting.