Who said "I was once like you, cynical and bitter."?

This quote is attributed to SpongeBob SquarePants.

I was once like you, cynical and bitter. - SpongeBob SquarePants

"I was once like you, cynical and bitter."

SpongeBob SquarePants Change

"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!"

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."