[Jack Straw]

Here's a few that come to mind:

Mr. Lebowski: "What makes a man, Mr. Lebowski? Is it being prepared to do the right thing, whatever the cost?"
The Dude: "Sure, that and a pair of testicles!"

My favorite saying of my Dad's:
"No guts, no glory."

And to paraphrase (poorly) one of my favorite philosophers, once your intentions, thoughts, and morality are aligned with the spirit of all that is good in man, nothing you do can ever be wrong.