If you want peace, work for justice.

The Mass is the most perfect form of prayer.

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

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.

The transmission of human life is a most serious role in which married people collaborate freely and responsibly with God the Creator.

Liturgy is like a strong tree whose beauty is derived from the continuous renewal of its leaves, but whose strength comes from the old trunk, with solid roots in the ground.

We see in these swift and skillful travelers a symbol of our life, which seeks to be a pilgrimage and a passage on this earth for the way of heaven.