Hugh of St. Victor’s[13] _Lore of teaching_ (_Eruditio didascalica_, or _Didascalicon_) is neither a compend nor a program; it is a concise philosophical survey of education. Though his primary concern is with what is to be studied, and to what ends, he sometimes gives also acute hints of method. Book I (_De studio legendi_), a preliminary survey of typical directions of study, ends (xii) with _logica_, Hugh’s general term for the Trivium as a group, i.e., for all language studies. Considering language as expression (_logica sermocinalis_), these are indeed the usual three; but considering language as thought (_logica rationalis_), they are only two, _dialectica_ and _rhetorica_. Book II (_De discretione artium_) expands the exposition to determine the places of all seven arts in a scheme of philosophy. First the Quadrivium, then the manual arts, are classified under the traditional threefold division:[14] theory (1) of thought, (2) of morals, or conduct, (3) of technical skill. Outside this division remains the Trivium, Hugh’s _logica_, as a fourth and final group. Though _logica_ may be divided simply, as in Book I, Hugh now offers a more philosophical division by function in composing. By the latter we have (a) _grammatica_ by itself as having no such function, and (b) _rhetorica_ and _dialectica_ together as both involving investigation (_inventio_) and the processes of arrangement, and revision (_iudicium_). These two composition studies are thus seen to belong, as probable proof (_probabilis_), between absolute, or abstract proof (_demonstratio_) and plausible, or illegitimate proof (_sophistica_). PHILOSOPHIA _theorica_ { theologia (the Boethian intellectibilis) { arithmetica (_speculativa_){ mathematica ( ” ” intelligibilis) { musica { physica ( ” ” naturalis) { geometria { astronomia _practica_ (_activa_, _ethica_) _mechanica_: the seven manual arts, e.g., lanificium, agricultura { dialectica { rationalis { rhetorica _logica_ { I { { grammatica (scientia loquendi sine vitio) { sermocinalis { dialectica (disputatio acuta, verum a falso { distinguens) { rhetorica (disciplina ad persuadendum quæque { idonea) { grammatica _logica_ { { demonstratio II { ratio disserendi { probabilis (involving { dialectica { inventio and iudicium) { rhetorica { sophistica From these classifications Hugh proceeds in Book III to practical considerations: of studies as training (_disciplina_), of the interrelations of the seven arts, of a scheme of reading (_ordo legendi_), of meditation, etc. The three remaining books deal with sacred studies.