7 It is now our purpose to demonstrate that death ought not to cause too heavy grief, because nature itself rejects this. And so they say that there was a law among the Lycians, commanding that men who gave way to grief should be clothed in female apparel, inasmuch as they judged mourning to be soft and effeminate in a man. And it is inconsistent that those who ought to offer their breast to death for the faith, for religion, for their country, for righteous judgment, and the endeavour after virtue, should grieve too bitterly for that in the case of others which, if a fitting cause required, they would seek for themselves. For how can one help shrinking from that in ourselves which one mourns with too little patience when it has happened to others? Put aside your grief, if you can; if you cannot, keep it to yourself.
Source: On the Death of Satyrus (New Advent)