‘You!’ said the old man contemptuously. ‘What do you know of the time when young men shut themselves up in those lonely rooms, and read and read, hour after hour, and night after night, till their reason wandered beneath their midnight studies; till their mental powers were exhausted; till morning’s light brought no freshness or health to them; and they sank beneath the unnatural devotion of their youthful energies to their dry old books?