[183] [cap.37] We must now examine what this confusion is. How then shall we enter on this examination? In this manner, in my opinion. We have very often known those whom we had knowledge of before, from certain similarities and a comparison [120] of circumstances which have some connection with them. Therefore we also become acquainted with things in the same manner, which it is not easy to form a conception of from their own nature, from some similarity of other things connected with them.