The only way to write well is to write badly first.
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
世界是一面镜子,它向你展示你带给它的东西。
雕塑在大理石块中已经完成,在我开始工作之前。它已经在那里,我只需要凿去多余的材料。
一本书是一面镜子;如果一个傻瓜往里看,你不能指望一个智者往外看。