数学不是一项观赏性运动；要理解它，必须积极参与其中。
Mathematics is not a spectator sport; to understand it, one must engage with it actively.
Life is a leaf of paper white，thereon each of us may write his word or two.
The highest form that civilization can reach is a seamless web of deserved trust-not much procedure, just totally reliable people correctly trusting one another...
The degree of slowness is directly proportional to the intensity of memory; the degree of speed is directly proportional to the intensity of forgetting.
知识不会使我们更丰富；它使我们越来越远离神话世界——这个我们曾经的天然家园。
我不需要任何人的允许来做自己。
