Who said "Kindness costs nothing, but it's worth everything."?

This quote is attributed to Jay Leno.

Kindness costs nothing, but it's worth everything. - Jay Leno

"Kindness costs nothing, but it's worth everything."

Jay Leno Kindness

Stand-up Comedian American Born 1950 (age 76)

"I don't think anything is unrealistic if you believe you can do it."

"People don't want to go to the trouble of voting for me."

"Honestly, I don't know what makes a divorce more or less permanent."

"The only thing that gets me is unfairness."

"A good man treats his wife with respect."

"Kindness always comes back around."

"The power of a smile can change everything."

"Kindness is weakness to some. Not to me."