Man's genius has with God's help produced marvelous technical inventions from creation, especially in our times. The Church, our mother, is particularly interested in those which directly touch man's spirit and which have opened up new avenues of easy communication of all kinds of news, of ideas and orientations.

Peace is not merely the absence of war. Nor can it be reduced solely to the maintenance of a balance of power between enemies. Nor is it brought about by dictatorship. Instead, it is rightly and appropriately called "an enterprise of justice" (Is. 32:7). Peace results from that order structured into human society by its divine founder, and actualized by men as they thirst after ever greater justice.

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?

The pope is becoming a missionary, you will say. Yes, the pope is becoming a missionary, which means a witness, a shepherd, an apostle on the move.

If you believe in peace it is possible. If it is possible it is a duty.

Physics does not change the nature of the world it studies, and no science of behavior can change the essential nature of man, even though both sciences yield technologies with a vast power to manipulate the subject matters.

In youth the days are short and the years are long. In old age the years are short and day's long.