男女之別

Romance Mathematics

Smart man + smart woman = romance
Smart man+ dumb woman = affair
Dumb man+ smart woman = marriage
Dumb man+ dumb woman = pregnancy.

Shopping Math

A man will pay $2 for a $1 item he needs
A woman will pay $1 for a $2 item she doesn’t need

Happiness

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 and not try to understand her at all.

The Probability of Change

A woman marries a man expecting he will change, but he doesn't;
A man marries a woman expecting that she won't change, but she does.

General Equations & Statistics

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 than his wife can spend;
A successful woman is one who can find such a man.

Discussion Technique

A woman has the last word in any argument, Any thing a man says after that is the beginning of a new argument......

Longevity

Married men live longer than single man, but married men are lot more willing to die.