"You have to dream, you have to have a vision, and you have to set a goal for yourself that might even scare you a little because sometimes that seems far beyond your reach."

The balance of power is the only way to maintain peace in the international system.

"The truth is often hidden in the smallest details."

保持心情愉悦，就是人生的一大智慧。看到的东西不那么养眼也觉得可饱眼福，听的音乐不怎么好听也觉得可以享受，只吃蔬菜就能满足口腹之欲，穿的、住的很粗糙也能满足身体的需要。人穷一时，但心不穷，真正的穷养富养或许不完全是物质方面的，即使物质生活条件差，只要保持积极乐观的心态，心情保持愉快，可以弥补物质上的不足。正如孔子赞扬颜回“一箪食，一瓢饮，回也不改其乐”。

I have to say to myself that some birds aren't very close. Their feathers are just too bright. When they fly away, you know it's a sin to lock them up, and you'll be inspired by them. Still, the place you live in is that much more drab and empty that they're gone. I think I really miss my friends.

变化是不可避免的，但成长是可选的。