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.

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.

No more war! Never again war! If you wish to be brothers, drop your weapons.

The religion of the God who became man has met the religion (for such it is) of man who makes himself God. And what happened? Was there a clash, a battle, a condemnation? There could have been, but there was none

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.

The Mass is the most perfect form of prayer.

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.