Charles Dickens, Oliver Twist
, chapter 14:
"He is a nice-looking boy, is he not?" inquired Mr. Brownlow.
"I don't know, said Mr. Grimwig, pettishly.
"No. I don't know. I never see any difference in boys. I only know two sorts of boys. Mealy boys, and beef-faced boys."
Charles Lamb, The Old and the New Schoolmaster
Boys are capital fellows in their own way, among their mates; but they are unwholesome companions for grown people.
Likewise, grownups are capital people in their own way, among their own kind; but they are unwholesome companions for boys.