Humanity cannot lift itself by its own bootstraps; there is no such thing as spontaneous generation; life does not come from crystals; poetry does not come from donkeys; international peace does not come from wars; social justice does not come from selfishness. With all our knowledge of chemistry we cannot make a human life in our laboratories because we lack the unifying, vivifying principal of a soul which comes only from God. Life is not a push from below; it is a gift from above. It is not the result of the necessary ascent of man but the loving descent of God.