anuvṛttilakṣaṇaṃ ghaṭādidravyaṃ vyāvṛttilakṣaṇās tu rūpādayaḥ paryāyā iti lakṣaṇabhedaḥ /
The substance in the form of jar etc. has the characteristic of permanence, while the successive properties like color etc. have the characteristic of change - this is difference in nature.