Pliny on Reading Books instead of Working

Epist. 1.3.3 (LCL, B. Radice)
To Caninius Rufus

But isn’t it really time you handed over those tiresome petty duties to someone else and shut yourself up with your books in the complete peace and comfort of your retreat? This is what should be both business and pleasure, work and recreation, and should occupy your thoughts awake and asleep!