The Importance of Passive Quality

As is equality in quantity so is similitude here. Let whoever the same thing which is changed in an equal time be equally swift whether therefore is it requisite to compare that in which the passion is or the passion itself. Here indeed it may be assumed that there is the same health or neither more nor less but similarly inherent. But if the passion is different as for instance that which becomes white is changed in quality and also that which acquires health in these there is nothing the same nor equal nor similarso far as these make the species of change in quality. Neither is there one change in quality only as neither is there one nation.