In your relations with those in whom there is something to disapprove, tread the razor. I am speaking of things I do not fully understand. But someone who understood them better, I think, might speak to us as follows.
A chasm is sometimes proposed between so-called virtue ethics and so-called rule or law ethics. Unless we are thinking of bad theories of ethics, there is no such chasm.
Though the followers of Calvin speak of “total” depravity, not even the greatest sin can obliterate the natural inclination to adhere to God’s law. Thomas Aquinas goes so far as to suggest that “Even in the lost the natural inclination to virtue remains, else they would have no remorse of conscience.”
The term "classical" is often misunderstood. Is classical music called classical because it is the oldest kind of music? No, for music was unthinkably ancient before classical music was developed. Is it so named because it is the best kind of music? No, for people may disagree about which music is best and yet agree about which music is classical. Because it is obsolete? No, for a classical tradition can remain vibrantly alive, continuing to develop and give birth to new work.
“And one of them, a lawyer, asked him a question, to test him. ‘Teacher, which is the great commandment in the law?’ And he said to him, ‘You shall love the Lord your God with all your heart, and with all your soul, and with all your mind. This is the great and first commandment. And a second is like it, You shall love your neighbor as yourself. On these two commandments depend all the law and the prophets.’” (Matthew 22:35-40, RSV.)
I pointed out yesterday that the Golden Rule doesn’t replace the moral precepts, but presupposes them. This limitation is not a defect in the Golden Rule; it merely corrects a possible misunderstanding about what the Rule is for. As excellent as the Rule is, you couldn’t know how to live if you knew the Rule but nothing else.
The Golden Rule is the pinnacle of ethics. But it does not replace the other moral precepts; it presupposes them.
Imagine a man reasoning, “Do unto others as you would have them do unto you -- yeah, sure. I wouldn’t mind if that fellow slept with my wife; fidelity is boring, and possessiveness is old-fashioned anyway. Therefore, he shouldn’t mind if I sleep with his.”
In order to get the right results from doing unto other as you would have them do unto you, you have to want them to do the right things unto you.