Mars and Venus

ROMANCE MATHEMATICS
Smart man + smart woman = romance

Smart man + dumb woman = affair

Dumb man + smart woman = marriage

Dumb man + dumb woman = pregnancy

OFFICE ARITHMETIC

Smart boss + smart employee = profit

Smart boss + dumb employee = production

Dumb boss + smart employee = promotion

Dumb boss + dumb employee = overtime

SHOPPING MATH

A man will pay $20 for a $10 item he needs.

A woman will pay $10 for a $20 item that 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.

PROPENSITY TO 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, and she does.

DISCUSSION TECHNIQUE

A woman has the last word in any argument.

Anything a man says after that is the beginning of a new argument