Who said "I thought I knew everything, but I knew nothing."?

This quote is attributed to Lightning McQueen.

I thought I knew everything, but I knew nothing. - Lightning McQueen

"I thought I knew everything, but I knew nothing."

Lightning McQueen Wisdom

"I'm Lightning McQueen. I'm a race car."

"Ka-chow!"

"I'm not just a race car, I'm a Lightning McQueen."

"Life is a journey, not just a race to the finish line."

"I'm not angry, I'm just disappointed."

"The best things in life are free."

"You can't have everything in life, but you can have what matters most."

"A woman's intuition is rarely wrong."