Who said "You can't tell me nothing."?

This quote is attributed to Kelso.

You can't tell me nothing. - Kelso

"You can't tell me nothing."

Kelso

"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."