"The man who could work that mine, wouldn't need me to teach him.
The man who'd need me, wouldn't be worth a dime."
The meaning of the term "duty" is: the moral necessity to perform certain actions for no reason other than obedience to some higher authority, without regard to any personal goal, motive, desire or interest. Who in hell can have the right to claim that sort of submission or obedience? ~ Ayn Rand