conoscente

— I passed two Mornings in looking at the pictures of Sasso Ferrato and Andrea Mantegna, Names which I used to know only in Books: the Works of Guido Reni as the Italians always call him however, give one the real, & true, & unaffected Delight which that Art can afford—and as Goldsmith used to say the way to set up for a Conoscente was to talk a great deal about Pietro Perugino, I assure you that in that Merit I have already made many advances.