Stop being afraid of what could go wrong and think of what could go right.
适应变化是我们行业历史的一部分,也将是我们未来成功的关键。
The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
做好事如同背负重物而登山,志向虽已确立,但总是担心力不从心;干坏事如同骑马下山,虽然未加鞭,但却欲驻足而难以自禁。