The higher type of man clings to virtue, the lower type of man clings to material comfort. The higher type of man cherishes justice, the lower type of man cherishes the hope of favors to be received.
When a man is guided by the principles of reciprocity and consciousness, he is not far from the moral law. Whatever you don't wish for yourself don't do unto others.
The wise men of antiquity, when they wished to make the whole world peaceful and happy, first put their own States into proper order. Before putting their States into proper order, they regulated their own families. Before regulating their families, they regulated themselves. Before regulating themselves, they tried to be sincere in their thoughts. Before being sincere in their thoughts, they tried to see things exactly as they really were.
Old age, believe me, is a good and pleasant thing. It is true you are gently shouldered off the stage, but then you are given such a comfortable front stall as spectator.
What you dislike in your superiors, avoid doing to your inferiors. What you dislike in your inferiors, avoid doing when working for your superiors. What you hate in those who are in front of you, do not do to those behind you.