World order can be founded only on an unshakeable consciousness of the oneness of mankind, a spiritual truth which all the human sciences confirm. Anthropology, physiology, psychology, recognize only one human species, albeit infinitely varied in the secondary aspects of life. Recognition of this truth requires abandonment of prejudice—prejudice of every kind—race, class, colour, creed, nation, sex, degree of material civilization, everything which enables people to consider themselves superior to others.