Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
数学的美在于它能够用一种既精确又普遍的语言来描述宇宙。
对智者来说,世界是喜剧;对愚者来说,世界是悲剧。
At every crossroads on the path that leads to the future, tradition has placed 10,000 men to guard the past.