Epictetus · Discourses 39.5
It is not the philosopher’s business to look after externals, his wine, oil, or poor body. His business is his own ruling power. As to externals, only do not be careless.
What this means
The philosopher's real work is not managing his possessions but governing the mind that uses them. Epictetus is not telling you to neglect your affairs; 'only do not be careless' keeps you responsible. He is telling you where your attention belongs first.
On control, reason, simplicity.