إذ الأنواع الحقيقية لا تختلف بالإضافات
For genuine kinds do not differ merely through relational descriptions.
Describing movement as fast or slow can reflect comparison with another movement. One traveler is fast relative to a second but slow relative to a third. These descriptions do not establish three fundamentally different substances.
The example helps answer the objection that multiplying comparative descriptions must multiply independent accidents and subjects at every level. A relative characterization should not be confused with a separate self-subsisting reality.