Unnecessary possessions are unnecessary burdens. If you have them, you have to take care of them! There is great freedom in simplicity of living. It is those who have enough but not too much who are the happiest. ↗
You can manage 50 people through the strength of your personality and lack of sleep. You can touch them all in a week and make sure they're all pointed in the right direction. ↗
So no, it's not all in the genes, but what isn't in the genes isn't in the family environment either. It can't be explained in terms of the overall personalities or the child-rearing practices of parents. ↗
Anyone can see that an ass laden with books remains a donkey. A human being laden with the undigested results of a tussle with thoughts and books, however, still passes for wise. ↗