drawing.. and studying architecture

My father recently sent me an interesting cutting; a review of a new book about Michaelangelo. It tells of how he invented through drawing. He apparently disdained the authority of Vitruvius' theory, learning slowly by copying architecture. Drawing was itself a mode of education, and he found his way into architecture in the 16th century using drawing-as-thinking. (education comes from e-ducere, drawing out). The review, by Philip Drew, is from The Australian.