Two professors entered into a bet whereby the first professor was to take two prostitutes and give them a classic education. Things went fine at first, the women did well in astronomy, being already acquainted with the night sky, and were familar with Latin due to many encounters with priests. But, to the surprise of both professors, the women enjoyed philosophy most of all, and took to it like ducks to water.
After a few weeks, the second professor went to his friend's house to concede defeat--the prostitutes were even learning Greek! But, when he arrived at his friend's house, the study where the women had been learning was in shambles, the professor was halfway through his second gin and tonic and the women were gone.
"Dear God, what happened?" he asked.
"I have no idea," replied his friend. " We had just turned to the study of the early French philosophers, and the women got quite irrational, and then stormed out. What could have gone wrong?"
"I'm not surprised," said the second professor. "Everyone knows you can't put Descartes before the whores."
