Life has taught me to think，but thinking has not taught me to live.

无知者是不自由的，正因和他对立的是一个陌生的世界。

I’m a human being and I fall in love and sometimes I don’t have control of every situation.

The greatest use of life is to spend it for something that will outlast it.

弦理论的景观是广阔而复杂的，可能有10^500个不同的可能宇宙。

There's a tendency to think that our present politicians are much worse than we had in the past.But we tend to forget how awful our politicians were in the past.