17. The passions too have most of them, in most persons, operations on the body, and cause various changes in it; which not being always sensible, do not make a necessary part of the idea of each passion.
17. Grinarik gehienek eragina dute pertsona gehienen gorputzean, zenbait aldakuntza eraginez, baina aldakuntza hauek beti nabarmen ez direnez, ez dira nahitaez grina bakoitzaren ideiaren osagai izaten.