Real learning... is a thing in which the learner is not a receiver only of words written or spoken: he must be a doer. - George Long

The difficulty is to find teachers, particularly in the humble kind of schools, who can explain the elements of astronomy; but if teachers were taught such matters, they could explain them to others, and some of the teachers would be better employed in this way than in learning and teaching other things. ...I believe that many children in the humblest schools will observe and learn as well as those in other schools. When children are younger, we must use other ways of training the eye to observe.

Fine thoughts and moral dissertations from men who have not worked and suffered may be read, but they will be forgotten. No religion, no Ethical philosophy is worth anything, if the teacher has not lived the "life of an apostle," and been ready to die "the death of a martyr." "Not in passivity [the passive affects], but in activity, lie the evil and the good of the rational social animal, just as his virtue and his vice lie not in passivity, but in activity" (IX. 16).

Cleanthes, a Stoic, subdivided the three divisions, and made six: Dialectic and Rhetoric, comprised in Logic; Ethic and Politic; Physic and Theology. This division was merely for practical use, for all Philosophy is one.