The world may be mean, but people don’t have to be, not if they refuse.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

Have a heart that never hardens, and a temper that never tires, and a touch that never hurts.

原子能的释放并没有创造新的问题。它仅仅是把解决一个现有问题的工作变得更为急迫。

To write is to live twice.

保持好奇心，保持对世界的好奇心。

你唯一应该努力超越的人就是昨天的自己。