Pretend inferiority and encourage his arrogance.
The more consistent a father can be or a mentor can be in the person's life and teach them principles of real solid manhood, character, integrity and leadership, the more consistent you can be in the person's life and teach them those things at a younger age, and then the better off they'll be.
[from ]In those days also people loved, envied, sought truth and virtue, and where carried away by passions; and there was the same complex mental and moral life among the upper classes, where were in some instances even more refined than now. If we have come to believe in the perversity and coarse violence of that period, that is only because the traditions, memoirs, stories, and novels that have been handed to us, record for the most part exceptional cases of violence and brutality. To suppose that the predominant characteristic of that period was turbulence, is as unjust as it would before a man, seeing nothing but the tops of trees beyond a hill, to conclude that there was nothing to be found in that locality but trees.