Who said "I'm not a man, I'm a sponge."?

This quote is attributed to SpongeBob SquarePants.

I'm not a man, I'm a sponge. - SpongeBob SquarePants

"I'm not a man, I'm a sponge."

SpongeBob SquarePants Truth

"I'm ready!"

"Ahahaha! I love you."

"The best time to wear a striped sweater is all the time."

"I'm a goofy goober, yeah!"

"Lucy, you got some 'splainin' to do!"

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."