On one occasion, the Buddha said to the monks this:
"No other form do I know, O monks, that so persists in obsessing the mind of a man as the form of a woman. The form of a woman persists in obsessing the mind of a man.
A novice was trying to fix a broken Lisp machine by turning the power off and on. Knight, seeing what the student was doing spoke sternly: "You can not fix a machine by just power-cycling it with no understanding of what is going wrong." Knight turned the machine off and on. The machine worked.