You have begot me, bred me, loved me: I Return those duties back as are right fit, Obey you, love you, and most honour you.

Be kind, for everyone is fighting a hard battle. And if you really wanna see what people are… all you have to do… is look.

In mathematics, there are no shortcuts.

【讲解】：在实行仁德之事的时候对自己的老师也不要谦让。