'He began to work long before daybreak.…He read nothing without making extracts; he used even to say that there was no book so bad as not to contain something of value. In the country it was only the time when he was actually in his bath that was exempted from study. When travelling, as though freed from every other care, he devoted himself to study alone. In short, he deemed all time wasted that was not employed in study.' (Pliny the Younger, Epp. iii.5 - an account of Pliny the Elder's manner of life told by his nephew and heir Pliny the Younger).