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.

The international trading system was devised by the rich to suit their needs; it ignores those of the poor.

Is he prepared to support, at his own expense, projects and undertakings designed to help the needy? Is he prepared to pay higher taxes so that public authorities may expand their efforts in the work of development? Is he prepared to pay more for imported goods, so that the foreign producer may make a fairer profit? Is he prepared to emigrate from his homeland if necessary and if he is young, in order to help the emerging nations?

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.

This world in which we live needs beauty in order not to sink into despair. It is beauty, like truth, which brings joy to the heart of man and is that precious fruit which resists the year and tear of time, which unites generations and makes them share things in admiration.

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.

If the world is made to furnish each individual with the means of livelihood and the instruments for his growth and progress, each man has therefore the right to find in the world what is necessary for himself. The recent Council reminded us of this: "God intended the earth and all that it contains for the use of every human being and people. Thus, as all men follow justice and unite in charity, created goods should abound for them on a reasonable basis."