过去从未死去;它甚至不曾过去。
The past is never dead; it is not even past.
Sustainable development is not a choice, but a responsibility.
有时候你必须做你必须做的事情才能生存。
我想揭示大自然的秘密,用来造福人类。我认为,在我们的短暂一生中,最好的贡献莫过于此了。
You have to believe in yourself when no one else does.