2 He thought it a vain thing to see glorious principles lie buried in books

He thought it a vain thing to see glorious principles lie buried in books, unless he did remove them into his understanding; and a vain thing to remove them unless he did revive them, and raise them up by continual exercise. Let this therefore be the first principle of your soul That to have no principles or to live beside them, is equally miserable. And that philosophers are not those that speak but do great things.