I cannot recall any distinctive attribute to which this rule does not apply. There are an infinite species of creatures, and infinite tastes and tendencies. Even if we narrow down our field of investigation to one nation or even a single family, we find that each individual is approaching life by different byways, with different prejudices and different temperaments and different conceptions. But throughout history the majority of the normal type has been inclined to flout this divine principle. The Puritans, for example, were a particular type who did not like the gayer life of the world, and preferred a stern evangelical atmosphere. Consequently they regarded those amusements for which they happened to possess no partiality, as evil, and whenever they had the opportunity they suppressed them; they eliminated Christmas and the mince-pie. Equally we can see that if the normal mechanical Teutonic type had said that it was unnatural for men to be artistic and had suppressed the arts, it would have been a disaster for the world. There is not one vocation, but there are many vocations; all types are the design of intention, and are there, not to be suppressed, but to carry out their particular mission. This again, is equally true of sex, and we must apply the same conclusions towards the many types which we shall presently meet, abnormal as well as normal. The Protestant, for example, really acknowledges a uniform sex-nature only. You will continually hear a Protestant declaring that it is unnatural for a man to be a celibate: this is, of course, pure nonsense. It might be unnatural for a normal sex-nature to remain celibate, just as it would be unnatural for a natural celibate to marry. The Catholic Church has been far wiser. She can offer the Religious Life to the celibate and the Sacrament of Marriage to the non-celibate. There are few types of individual more unintelligent than that which, while it cannot so interfere with personal liberty as to compel marriage, persists in uttering the convention that "every man ought to do his duty to the State." The truism is true; what is wrong is the failure to conceive that there is no uniform duty for every man. But the third principle is more complex in character, or, rather, in the considerations which it involves. It consists, really, of a re-affirmation as to the Catholic condemnation of the heresy of Manichaeism.