要是这世上少点同情心，这世界就不会有那么多麻烦。.

The world is full of willing people; some willing to work, the rest willing to let them.

The only limits that exist are the ones you place on yourself.

过去从未死去，它甚至还未过去。

物理学的未来取决于我们操纵比当前能测量的更快过程的能力。