It is helpful to know the proper way to behave, so one can decide whether or not to be proper.

It is helpful to know the proper way to behave, so one can decide whether or not to be proper.

知道正确的行为方式是有帮助的，所以一个人可以决定是否正确。

-- Gail Carson Levine 盖尔·卡森·乐文