Other questions that may be raised are such as these: Does a man owe his father unlimited respect and obedience, or ought he when ill to take the advice of a physician, and when electing a general to vote for the best soldier? and similarly, ought he to do a service to a friend rather than to a virtuous man, and ought he to repay his obligation to a benefactor rather than make a present to a comrade, when he is not in a position to do both?