It seems to me, therefore, quite certain, in spite of the dogma that no relations are purely external, that there are many predicates, such for instance as most (if not all) subjective predicates or the objective one of being surrounded by a red ring, which do not depend solely on the intrinsic nature of what possesses them: or, in other words, of which it is not true that if possesses them and does not, and must differ in intrinsic nature.