"1. Let other men’s wives alone
2. Strike none of your own followers , or if you do, send the injured man far away
3. Don’t ride a hard-mouthed horse, or one that drops his shoe"
2. Strike none of your own followers , or if you do, send the injured man far away
3. Don’t ride a hard-mouthed horse, or one that drops his shoe"
—

Jacopo Attendolo to his son Francesco Sforza, the future Duke of Milan. Still three pieces of sound advice.