Who said "Why don't I try to be a better person?"?

This quote is attributed to Kelso.

Why don't I try to be a better person? - Kelso

"Why don't I try to be a better person?"

Kelso Change

"I'm not stupid, I'm just not thinking."

"That's what I love about these high school girls, man. I get older, they stay the same age."

"I'm a sexy beast."

"My brain is on fire."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."