Who said "If at first you don't succeed, try once more then give up."?

This quote is attributed to Kelso.

If at first you don't succeed, try once more then give up. - Kelso

"If at first you don't succeed, try once more then give up."

Kelso Humor

"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."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."