A scientist’s greatest tool is not just their intellect but their imagination.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
教育者的心必须是一团活生生的火焰，是温暖和光明的源泉。
The golden rule is that there are no golden rules.
You have to say, I am the person who is going to make the difference.
We are all, in the end, what we remember.