始终为最坏的情况做计划。

Quality is the best business plan.

To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.

True innovation comes from the relentless pursuit of details.

Everything is what it is， and not another thing.

Acting is not about being someone different. It's finding the similarity in what is apparently different, then finding myself in there.

国君得到了我的学说，就必然会采用。 

"I don't believe in happy endings."

The beauty of mathematics lies in its ability to reveal hidden symmetries and truths.