When a man has married a wife, he finds out whether / Her knees and elbows are only glued together.

I have mental joys and mental health,Mental friends and mental wealth,I've a wife that I love and that loves me;I've all but riches bodily.

As a man is, so he sees

We got married to get to know each other and see if we could make it together.

He was happily married - but his wife wasn't

A fool sees not the same tree that a wise man sees.