英译英解释下面几个谚语.一定是用英语!

There is no such thing as a free lunch.
it means "no pain,no gain"
There's no one but longs to succeed , but it's not easy to get success .anything
that promises quick returns without much work is a sure trap
.
2.There is no use crying over spilled milk
What is done can't be undone.
3.Think twice,act wise.
think twice before you do
（Second thoughts are best.三思而后行）
4.Too many cooks spoil the broth.
If too many people are involved in sth,it will not be done properly.
或If too many people try to do something,then the job will not be done well.
5.Two wrongs do not make a right.
You should not do something bad just because someone did the same to you.