doctrīna

Doctrina denotes learning as a particular species of intellectual cultivation, whereas eruditio the learned result, as the crown of intellectual cultivation. Doctrina evinces a superiority in particular branches of knowledge, and stands as a co-ordinate notion with exercitatio, which is distinguished from it by involving a superiority in the ready use of learning, and can therefore, even as a mere theory, be of more evident service in practice than that which is indirectly important; eruditio stands in still closer relation to practice, and involves the co-operation of the different branches of knowledge and different studies to the ennobling of the human race; it denotes genuine zeal for the welfare of mankind in an intellectual, as humanitas does in a moral, point of view. (v. 268.)

Literæ and artes denote the sciences as the general objects of scientific education; literæ, in a narrower sense, only as literature, or the sciences so far as they are laid down in books, and, together with other branches of knowledge, enrich the mind, and are the means of sharpening the understanding and forming the taste, artes (ἀρεταί?) in the widest sense, so far as the knowledge of them immediately attests intellectual cultivation, and readiness in the practical application of the sciences; whereas doctrinæ and disciplinæ denote particular parts of the general objects of knowledge formed into systems; doctrinæ, more the speculative and abstract parts of philosophical and learned education; disciplinæ, more the practical parts, that are conducive to the purposes of life. (v. 269.)