Twenty years of romance make a woman look like a ruin; but twenty years of marriages make her look like a public building.

All violence consists in some people forcing others, under threat of suffering or death, to do what they do not want to do.

The only way to achieve the impossible is to believe it is possible.

最好的建筑来自于客户与建筑师之间的对话。

I don't have any particular recipe [for developing new proofs] ... It is the reason why doing research is challenging as well as attractive. It's like being lost in a jungle and trying to use all the knowledge that you can gather to come up with some new tricks, and with some luck you might find a way out.