A passage from Epictetus
Epictetus, Discourses III.2
✱
There are three fields of study in which he who is to be good and worthy must be exercised: that of desires and aversions; that of impulses to act and not to act; that of assent.
Related passages
✱
At dawn, when you have trouble getting out of bed, tell yourself: 'I have to go to work — as a human being.'
✱
Take care not to be Caesarified, or dyed with purple; for it does happen. Keep thyself then simple, good, pure, serious, free from affectation.
✱
It is a man's special privilege to love even those who wrong him.