Plutarch·95 ADA man ought to handle his body like the sail of a ship, and neither lower and reduce it much when no cloud is in sight, nor be slack and careless in managing it when he comes to suspect something is wrong, but he should rather ease the body off and lighten its load, and not wait for indigestions and diarrhoeas, nor heightened temperatures nor fits of drowsiness.
Seneca·60 CE ADThe mind must be given relaxation — it will rise improved and sharper after a good rest. Just as we must not force fertile farmland, for uninterrupted productivity will soon exhaust it, so constant effort will sap our mental vigor.
Herodotus·-440 ADIf a man insisted always on being serious, and never allowed himself a bit of fun and relaxation, he would go mad or become unstable without knowing it.
