How sharper than a serpent's tooth is to have a thankless child.
我们应当谨记,儿童爱我们,而且还很想服从我们。
You will never be happy if you continue to search for what happiness consists of. You will never live if you are looking for the meaning of life.
幸福不是现成的,它来自你自己的行动。
出自《抱朴子·备阙》。使用弹弓打鸟,泥丸比千金更适用。