永远不要问理发师你是否需要理发。
Never ask a barber if you need a haircut.
The great tragedy of Science—the slaying of a beautiful hypothesis by an ugly fact.  
"The stories of the marginalized and the displaced are essential to understanding the full complexity of our world."
只有在爱的神秘方程式中才能找到任何合乎逻辑的理由。
如果自己道德高尚,就不会被外界不正的东西所迷惑。