"The moment you doubt whether you can fly, you cease for ever to be able to do it."

The first prerequisite of a sound foreign policy is a clear understanding of one's own values.

在能源问题上，我们必须超越自己的生命周期去思考。

The boundary between physics and mathematics is not as clear-cut as we might think.

I'm the worst thing since Elvis Presley, to do Black music so selfishly and use it to get myself wealthy.