对称性不仅是自然的一种属性，而且是寻找物理定律的指导原则。

做出伟大工作的唯一途径就是热爱你所做的事。

I’m a very positive thinker, and I think that is what helps me the most in difficult moments.

真正改变的唯一方法是改变你的环境。

The best way to predict the future is to create it.

To photograph is to appropriate the thing photographed.

International politics is a ruthless and dangerous business, and it is foolish to expect states to behave according to moral principles.

没有解决方案。只有取舍选择。

我不是那种会让对我家人的爱减少的人。