Ah you must be a mathematician :-)
The difference between a mathematician and an engineer. An engineer and a
mathematician are put in a room. At the other end of the room is a beautiful
naked woman. They are told that every time a bell is rung they may move half
the distance to the woman.
The mathematician: I'll never get there.
The engineer: I'll get near enough. Start ringing.
College dean, to the Physics Department:
"Why do I always have to give you guys so much money
for laboratories and expensive equipment?
Why couldn't you be like the Math Department?
All they need is money for pencils, paper, and waste-paper baskets
--or even better, like the Philosophy Department.
All they need are pencils and paper."