Individual initiative alone and the mere free play of competition could never assure successful development. One must avoid the risk of increasing still more the wealth of the rich and the dominion of the strong, whilst leaving the poor in their misery and adding to the servitude of the oppressed.
Pope Paul VIMan is suddenly becoming aware that by an ill-considered exploitation of nature he risks destroying it and becoming in his turn the victim of this degradation. Not only is the material environment becoming a permanent menace - pollution and refuse, new illness and absolute destructive capacity - but the human framework is no longer under man's control, thus creating an environment for tomorrow which may well be intolerable. This is a wide-ranging social problem which concerns the entire human family.
Pope Paul VIIn youth the days are short and the years are long. In old age the years are short and day's long.
Pope Paul VI