 Now, logic considers things in one of two ways: in terms of first intentions, that is, as the things themselves and thus belonging to one of the ten highest kinds of being—the categories; in terms of second intentions, that is, things as considered by the intellect and in respect to other things (DOS 459). They are called first and second because only after knowing things themselves can we consider their mutual relations (DOS 459): second intentions are about first intentions. ‘Substance’, ‘quality’, and such are names of first intentions, whereas ‘universal’, ‘particular’, ‘to be an antecedent’, ‘to be a consequent’, and such are names of second intentions.