I have made a ceaseless effort not to ridicule， not to bewail， not to scorn human actions， but to understand them.

On the path of science, failure is the norm, but each failure brings us closer to success.

You cannot always control what goes on outside, but you can always control what goes on inside.

我们都害怕——为我们的信心，为未来，为这个世界。

我不怕死，我怕的是不去尝试。

"The past is never dead. It's not even past."