科学发现的影响可能是深远的，往往远远超出最初的预期。

States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.

Success is the sum of small efforts, repeated day in and day out.

I like to create characters that are a little bit quirky and unusual.

成功的真正标准不在于收获，而在于我们留下的遗产。