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

人生在世，不是为了满足别人的期望而活。

Let me explain. I think it would be very unusual for anyone here, or anyone watching, to be envious of the Queen of England. Even though she is much richer than any of you are, and she's got a very large house, the reason why we don't envy her is because she's too weird.

Never underestimate the power of teamwork in achieving what seems impossible.