Mustn’t we say, then, that the book of nature speaks to us only of essences, as many distinguished theologians teach?” “Not entirely, dear Adso,” my master replied. “True, that kind of print expressed to me, if you like, the idea of ‘horse,’ the verbum mentis, and would have expressed the same to me wherever I might have found it. But the print in that place and at that hour of the day told me that at least one of all possible horses had passed that way. So I found myself halfway between the perception of the concept ‘horse’ and the knowledge of an individual horse.