Failure after long perseverance is much grander than never to have a striving good enough to be called a failure.

Mathematics is the art of giving the same name to different things.

The facts are always friendly, every bit of evidence one can acquire, in any area, leads one that much closer to what is true.

Safety isn't just a policy, it's a culture that starts at the top.

尊重自然，顺应自然。