Sometimes we measure things and see that in the short term they actually hurt sales, and we do it anyway.
The greatest killer of happiness is comparison. If you must compare， compare yourself to you yesterday
相关性和因果关系之间的区别在实证工作中是根本性的。
有机催化剂的美在于它们的多样性和适应性。
We come nearest to the great when we are great in humility。