Who said "A man must be true to his word or he's worth nothing."?

This quote is attributed to Mike Ehrmantraut.

A man must be true to his word or he's worth nothing. - Mike Ehrmantraut

"A man must be true to his word or he's worth nothing."

Mike Ehrmantraut Truth

"A man provides. And he does it even when he's not appreciated or respected or even loved. He simply bears up and he does it. Because he's a man."

"No more half measures."

"I am the man who gets things done."

"You know what business is, boy? It's all about relationships."

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

"You must always be honest with the people you love."

"Truth always comes out in the end."

"Honesty is always the best policy."