Who said "The wisest man knows how little he truly understands."?

This quote is attributed to Ricky Ricardo.

The wisest man knows how little he truly understands. - Ricky Ricardo

"The wisest man knows how little he truly understands."

Ricky Ricardo Wisdom

"Lucy, you got some 'splainin' to do!"

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

"Babalú!"

"This is going to be a great show!"

"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."