The thrill of discovery never gets old.
Writing is about finding the extraordinary in the ordinary.
数学的本质在于它的自由。
关于回忆最美好的事情就是创造它们。
We are communal histories, communal books. We are not owned or monogamous in our taste or experience.
The quest for understanding is the noblest pursuit of the human spirit.
如果不创立教育，没有老师传授学业，这样那些原本没有废弃的人才，也会被废弃了。
Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.