You cannot get through a single day without having an impact on the world around you. What you do makes a difference, and you have to decide what kind of difference you want to make.

I'm not a person who looks back and thinks, 'I wish I'd done that differently.'

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

非暴力是人类拥有的最伟大的力量。

"We are all in the gutter, but some of us are looking at the stars."

There is a time for daring,and there is a time for caution, and a wise man understanding which is called for

The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay of symmetry and topology leads to novel quantum states of matter.

人体是最复杂的谜题，而医学是我们解决它的方式。

我们都被过去所困扰，过去总是存在的。