The Roman rule was, to teach a boy nothing that he could not learn standing. The old English rule was, "All summer in the field, and all winter in the study." And it seems as if a man should learn to plant, or to fish, or to hunt, that he might secure his subsistence at all events, and not be painful to his friends and fellow men.
Essays (Annotated Edition) (ed. Jazzybee Verlag, 2012) - ISBN: 9783849623401