1.
Learning is a deep human need, like mating and eating, and like all such needs it is meant to be deeply pleasurable to human beings.
James Paul Gee
2.
An academic discipline, or any other semiotic domain, for that matter, is not primarily content, in the sense of facts and principles. It is rather primarily a lived and historically changing set of distinctive social practices. It is in these practices that 'content' is generated, debated, and transformed via certain distinctive ways of thinking, talking, valuing, acting, and, often, writing and reading.
James Paul Gee