天下的事情有难易之分吗?只要去做,难的也会变容易;不去做,容易的也会变难
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
It is the absence of facts that frightens people: the gap you open, into which they pour their fears, fantasies, desires.
没人会和你自己一样对你所拥有的东西印象深刻。(Morgan Housel《金钱心理学》里面的一句话,可以理解为禀赋效应:即,由于情感上的偏见,人们在自己已经拥有的东西上比尚未获得的东西拥有更大的价值)