“You're going to have to use your brain which is going to hurt because it's the weakest muscle in your body.”
Paul Hogan - Porter Ricks

“Fact: Alcohol kills brain cells. You lose one more and you're a talking monkey.”

Mark Harmon - Freddy Shoop

“- Swell: Kenny, why don't you save your last three brain cells, you might need them.
- Kenny: I won't!”
Christina Applegate - Swell
Keith Coogan - Kenny

“Maybe you could tell me what is going on. And please, speak as you might to a young child. Or a golden retriever. It wasn't brains that brought me here; I assure you that.”
Jeremy Irons - John Tuld

“Baravelli, you've got the brain of a four-year-old boy, and I bet he was glad to get rid of it.”
Groucho Marx - Professor Quincy Adams Wagstaff