要是这世上少点同情心，这世界就不会有那么多麻烦。.

逆向思考往往能带来意想不到的好处。

Trust is the currency of collaboration, and it must be earned every day.

过去并不属于我们，而我们属于过去。

The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.

我们在开采中做出的每一个决定都会影响几代人。