The biggest risk is not taking one.
最大的风险是不冒险。
Writing is a way of reclaiming the past.
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。
The most profound discoveries in mathematics often come from questioning the most basic assumptions.