“Einstein wrote that insanity is doing the same thing over and over and expecting a different result. That said, is it crazier to repeatedly throw yourself against a window, or to repeatedly open that window, believing the creatures that are throwing themselves against it might come into your house, take a look around, and leave with no hard feelings?”

“Do you know what Albert Einstein's definition of insanity was?" "No." "Doing the same thing over and over and expecting different results.”

“Insanity is doing the same thing, over and over again, but expecting different results.”

“One of the better definitions of insanity - doing the exact same thing over and over and expecting the result to be different.”

“Unfortunately, Susan didn't remember what Jane Fulton once said, 'Insanity is doing the same thing, over and over again, but expecting different results.”

“While he was doing it, I went over to my window and opened it and packed a snowball with my bare hands. The snow was very good for packing. I didn’t throw it at anything, though. I started to throw it. At a car that was parked across the street. But I changed my mind. The car looked so nice and white. Then I started to throw it at a hydrant, but that looked too nice and white, too. Finally I didn’t throw it at anything. All I did was close the window and walk around the room with the snowball, packing it harder. A little while later, I still had it with me when I and Brossard and Ackley got on the bus. The bus driver opened the doors and made me throw it out. I wasn’t going to chuck it at anybody, but he wouldn’t believe me. People never believe you.”