11.人非圣贤，孰能无过?

　　It’s just human to make mistakes.

　　12.许多人始终遵循“你敬我一尺，我敬你一丈”的处世原则。

　　Many people live by the principle: nice to me and I’ll be nicer to you.

　　13.这就叫作：投之以桃，报之以李。

　　This is what people say “a good turn deserves another”.

　　14.俗话说：龙生龙，凤生凤，老鼠的孩子会打洞。

　　As the saying goes: Like father, like son.

　　15.非宁静无以致远，非淡薄无以明智。

　　If you wish to go far, you need to cast aside all kinds of temptation and distraction and completely devote yourself to what you are doing.