The Big Lebowski: "What makes a man, Mr. Lebowski?"
The Dude: "Dude."
The Big Lebowski: "Huh?"
The Dude: "Uhh... I don't know sir."
The Big Lebowski: "Is it being prepared to do the right thing, whatever the cost? Isn't that what makes a man?"
The Dude: "Hmmm... Sure, that and a pair of testicles."