Who said "A real friend is there when you need him most."?

This quote is attributed to Clemenza.

A real friend is there when you need him most. - Clemenza

"A real friend is there when you need him most."

Clemenza Friendship

"Leave the gun. Take the cannoli."

"A man who doesn't spend time with his family can never be a real man."

"In this world, it's not what you say, it's what you do that counts."

"You can't get to heaven with a gun in your hand."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."