Robert N. Butler：年齡歧視讓比較年輕的世代認為老年人有異於他們，因此微妙地停止認同他們的長輩同為人類。
Anna Lappe: 「Every time you spend money, you're casting a vote for the kind of world you want.」
珍特·溫特森 (Jeanette Winterson)：「傷口是一種象徵。原本屬於你的東西，你不能否摁。拋出去的總會返回，會清算，會復仇，或許也會和解。一定會歸返。」
思想家以撒．柏林 (Isaiah Berlin) 1953年的著作 《刺蝟與狐狸》 (The Hedgehog and the Fox) 就對比了刺蝟和狐狸：刺蝟「把所有事物連結到單一視角上」，而狐狸則「探索事務的連結......無論連結的強弱」。
李律："我一直有意識地逃避失敗、與所有造成失敗的可能，不停地逃，直到最後無處可逃，我被失敗逮個正著。那時我正要四十歲。"
late United States Secretary of Defense Donald Rumsfeld: "…because as we know, there are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns – the ones we don’t know we don’t know."
『父死路遠，母死路斷』