The international trading system was devised by the rich to suit their needs; it ignores those of the poor.
Pope Paul VIPhysics 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.
Pope Paul VIThe transmission of human life is a most serious role in which married people collaborate freely and responsibly with God the Creator.
Pope Paul VI