If you can't explain your chemistry to a non-scientist, you don't understand it well enough.

诗人的心必须向天堂所有的风敞开。

Happiness lies in the joy of achievement and the thrill of creative effort.

The only way to make sense out of change is to plunge into it, move with it, and join the dance.

解析：学习不在数量，而在精通。

The material is the message.

未经审视的生活不值得过。