"There’s always been a close association between the concept of learning and that of doing. It is reasonable to suppose that there’s been a similar close association between the concept of doing and that of working, even though there is occasional evidence to the contrary.
Life used to be so simple. People learnt their trades, usually as apprentices to those who’d mastered some particular skill or skills, and then went off to apply what they’d learnt, to ply their trade. As apprentices, they learnt in a number of ways: they received instruction; they observed; they imitated; they practised; they received feedback; they improved. They learnt. And by learning they achieved mastery in a skill or set of skills."