It is easy to be wise after the event. Make the best of a bad bargain. They brag most who can do least. Sometimes the best gain is to lose. Look on both sides of the shield.

已知吃亏，尽力而为。 本领最小的人最会吹牛。 有时吃亏就是最大的便宜。 看问题要从两面看。

I'll easy to be wise after the event.

当事后诸葛亮是容易的。

It's easy for you to be wise after the event, and tell me that I was foolish to stay in that hotel.

你放马后炮倒很容易，现在才说我住那旅馆真笨！

It's easy to be wise after the event.

事后聪明是容易的。

It is easy to be wise after the event.

事后聪明不难； 作事后诸葛亮容易。