宇宙中唯有两件事物是无限的:那就是宇宙的大小与人的愚蠢。而宇宙的大小我却不能肯定。
The structure of the international system forces states to behave in certain ways, regardless of their internal characteristics.
"Freedom is not something that anybody can be given. Freedom is something people take, and people are as free as they want to be."