Epictetus said this quote
“ If, on the other hand, we read books entitled On Impulse not just out of idle curiosity, but in order to exercise impulse correctly; books entitled On Desire and On Aversion so as not to fail to get what we desire or fall victim to what we would rather avoid; and books entitled On Moral Obligation in order to honour our relationships and never do anything that clashes or conflicts with this principle; then we wouldn’t get frustrated and grow impatient with our reading. Instead we would be satisfied to act accordingly. And rather than reckon, as we are used to doing, ‘How many lines I read, or wrote, today,’ we would pass in review how ‘I applied impulse today the way the philosophers recommend ”