To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

煤炭的未来在于清洁高效利用。

每一滴海水都承载着地球的历史。

You have to believe in the impossible.

"The truth of a life lies not in the grand events, but in the quiet moments in between."

A word after a word after a word is power.

深度学习是解决复杂问题的强大工具。