Work at it night and day.
You must avoid sloth, that wicked siren.
Why harass with eternal purposes a mind to weak to grasp them?
You have played enough; you have eaten and drunk enough. Now it is time for you to depart.
There is a mean in all things; even virtue itself has stated limits; which not being strictly observed, it ceases to be virtue.
Rains driven by storms fall not perpetually on the land already sodden, neither do varying gales for ever disturb the Caspian sea.