 Suárez suggests a third a priori proof as well: the first being must be more perfect than any other being not in specific respects but absolutely, which is to say in all respects. Thus, for instance, human beings are more perfect than dogs in most respects, but not as concerns their olfactory capacity. God must be more perfect in every respect and for this reason he must include all the perfections of lesser beings (DM XXX.1.7).