The only advice i would give a son is the world hates you until you become useful. then it pretends it never hated you, and you must remember that it did, or you will start believing the love is real. and that is how they tame you
Never make the mistake of assuming that a person of peace is unskilled at war. If you start a war, don’t expect your enemy to play by your rules. You pick the battle, but they choose how it’s fought.