"Basic math" joke

BASIC MATH
Smart man + smart woman = romance
Smart man + dumb woman = pregnancy
Dumb man + smart woman = affair
Dumb man + dumb woman = marriage
Smart boss + smart employee = profit
Smart boss + dumb employee = production
Dumb boss + smart employee = promotion
Dumb boss + dumb employee = overtime
A man will pay \$2 for a \$1 item he needs.
A woman will pay \$1 for a \$2 item that she doesn't need.
A woman worries about the future until she gets a husband.
A man never worries about the future until he gets a wife.
A successful man is one who makes more money that his wife can spend.
A successful woman is one who can find such a man.
To be happy with a man, you must understand him a lot and love him a little.
To be happy with a woman, you must love her a lot & not try to understand her at all.
Married men live longer than single men, but married men are a lot more willing to die.
Any married man should forget his mistakes, there's no use in two people remembering the same thing.
Men wake up as good-looking as they went to bed.
Women somehow deteriorate during the night.
A woman marries a man expecting he will change, but he doesn't.
A man marries a woman expecting that she won't change, and she does.
A woman has the last word in any argument.
Anything a man says after, well, that's the beginning of a new argument.
There are 2 times when a man doesn't understand a woman: before and after marriage.