Plutarch, Consolatio ad Apollonium
Goodwin, Ed.

Therefore to be sad, even to an indisposition, for the death of a son proceeds from a principle of nature, and it is out of our power to prevent it. I dislike those who boast so much of hard and inflexible temper which they call apathy, it being a disposition which never happens and never could be of use to us; for it would extinguish that sociable love we ought to have for one another, and which it is so necessary above all things to preserve. But to mourn excessively and to accumulate grief I do affirm to be altogether unnatural, and to result from a depraved opinion we have of things; therefore we ought to shun it as destructive in itself, and unworthy of a virtuous man; but to be moderately affected by grief we cannot condemn. It were to be wished, saith Crantor the Academic, that we could not be sick at all; but when a distemper seizeth us, it is requisite we should have sense and feeling in case any of our members be plucked or cut off. For that talkedof apathy can never happen to a man without great detriment; for as now the body, so soon the very mind would be wild and savage.