「當個批評者或是啦啦隊長都是很容易的，但當個好教練卻很不簡單。批評者只需要找缺點並且攻擊你的軟肋；啦啦隊長則是找優點並且幫你慶祝。

但是好的教練，則要看到你的潛力，並且幫助你成為更好的你！」 by Adam Grant

（原文：It’s easy to be a critic or a cheerleader. It’s harder to be a coach.A critic sees your weaknesses and attacks your worst self. A cheerleader sees your strengths and celebrates your best self.

A coach sees your potential and helps you become a better version of yourself.）by Adam Grant