“‘Clifford, junior,’ he said, ‘I shall never make you understand what Caesar says here or elsewhere if you do not give your entire mind to Caesar.’
‘I do give my entire mind to Caesar,’ said Clifford, junior.
‘Very well; now go on and try again. But remember that Caesar wants all your mind.'”
-Anthony Trollope, Dr. Wortle’s School (1881), Part III, Chapter VIII