Petrus Thomae, Quodlibet, pt. 1 q. 5 a. 1 (ed. Buytaert-Hooper,
67-69): The second statement (dictum) is that 'containment' is
sufficiently divided by quidditative, concomitive, viritual, and
eminent containment. The third statement is that quidditative
containment is that which is of quidditative rationes or of
those perfecting in primary being [recall Aristotelian
distinction between primary and secondary being]. In this mode
every inferior contains the rationes of all its superiors. The
fourth statement is that concomitive containment is that which
is of those perfections or rationes perfecting in secondary
being, in the way in which being contains truth, goodness, and
unity, just as also whatever subject contains its proper
passions. In that mode as well the divine essence contains
attributes. This containment is called 'concomitive' because it
necessarily is subsequent to quidditative containment, for the
perfections perfecting in primary being follow upon the
perfections perfecting in secondary being. T