All things are possible until they are proved impossible and even the impossible may only be so, as of now.

科学是关于在知识和技术上突破界限。

"The past is always with us, for it feeds the present."

I was so much older then, I’m younger than that now.

Change starts when you stop blaming the darkness and light a candle.

领导力在于做出今天艰难的决定，这些决定将使子孙后代受益。