Sometimes it seems as if there are more solutions than problems. On closer scrutiny, it turns out that many of today's problems are a result of yesterday's solutions.

我认为一个简单的商业规则是，如果你先做更容易的事情，那么你实际上可以取得很多进展。

数学家最好的作品是艺术，一种高度完美的艺术，像想象的最秘密的梦想一样大胆，清晰而透明。

城市是建筑最伟大的老师。