To wage war on misery and to struggle against injustice is to promote, along with improved conditions, the human and spiritual progress of all men, and therefore the common good of humanity. Peace cannot be limited to a mere absence of war, the result of an ever precarious balance of forces. No, peace is something that is built up day after day, in the pursuit of an order intended by God, which implies a more perfect form of justice among men.

You must strive to multiply bread so that it suffices for the tables of mankind, and not rather favor an artificial control of birth, which would be irrational, in order to diminish the number of guests at the banquet of life.

We would also like you to know that the Church recognizes the riches of the Islamic faith - a faith that binds us to the one God.

Man 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.

No member of the faithful could possibly deny that the Church is competent in her magisterium to interpret the natural moral law.

Excessive economic, social and cultural inequalities among peoples arouse tensions and conflicts, and are a danger to peace.

Having rationally endeavored to control nature, is he not now becoming the slave of the objects which he makes?