Who said "That's what school's all about."?

This quote is attributed to Bart Simpson.

That's what school's all about. - Bart Simpson

"That's what school's all about."

Bart Simpson Education

"Eat my shorts!"

"Ay caramba!"

"Don't have a cow, man."

"Cowabunga!"

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."