Who said "School taught me how much I don't know."?

This quote is attributed to Droopy.

School taught me how much I don't know. - Droopy

"School taught me how much I don't know."

Droopy Education

"I'm so happy."

"Hello, I'm so glad to see you."

"That makes me so sad."

"I'm afraid I have some bad news."

"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."