Descartes

	I am, therefore I think. That's putting Descartes before the horse.

	Descartes walks into a bar. The bartender says, "Would you like a beer?"
	Descartes says, "I think not." Descartes disappears.

	Descartes described how his father taught him how to swim by throwing him
	into the Seine: "I sink, therefore I swam."