4 Let us then begin at this point, that we show that the departure of our loved ones should not be mourned by us. For what is more absurd than to deplore as though it were a special misfortune, what one knows is appointed unto all? This were to lift up the mind above the condition of men, not to accept the common law, to reject the fellowship of nature, to be puffed up in a fleshly mind, and not to recognize the measure of the flesh itself. What is more absurd than not to recognize what one is, to pretend to be what one is not? Or what can be a sign of less forethought than to be unable to bear, when it has happened, what one knew was going to happen? Nature herself calls us back, and draws us aside from sorrow of this sort by a kind of consolation of her own. For what so deep mourning is there, or so bitter grief, in which the mind is not at times relieved? For human nature has this peculiarity, that although men may be in sad circumstances, yet if only they be men, they sometimes turn their thoughts a little away from sadness.
Source: On the Death of Satyrus (New Advent)