Change is certain. Peace is followed by disturbances; departure of evil men by their return.

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

我们不是从祖先那里继承了海洋，而是从子孙那里借来的。

政府的机构可以通过践行善意、公平和同情心来良好运作。

最好的科学发现往往发生在学科的边界上。