土地是我们的母亲，河流是我们的血液。我们活着，因为土地活着。

The stock market is a voting machine in the short term and a weighing machine in the long term.

我们都在阴沟里，但仍有人仰望星空。

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.

We don't even know how strong we are until we are forced to bring that hidden strength forward. In times of tragedy, of war, of necessity, people do amazing things. The human capacity for survival and renewal is awesome.