The whole problem with the world is that fools and fanatics are always so certain of themselves， and wiser people so full of doubts.

别让别人的意见淹没了你内心的声音。

The beauty of mathematics lies in its ability to describe the universe in the most abstract terms.

When crisis comes, true leaders must dare to take responsibility and make quick decisions.

宇宙越是显得可理解，也就越是显得无意义。