Of the Preservation of the Species

Of the Preservation of the Species — St. Thomas Aquinas asks: Whether in the state of innocence generation existed?; Whether in the state of innocence there would have been generation by coition?.

We next consider what belongs to the preservation of the species; and, first, of generation; secondly, of the state of the offspring. Under the first head there are two points of inquiry:

Article 1: Whether in the state of innocence generation existed?

It is written (Gn. 1:28): "Increase and multiply, and fill the earth." But this increase could not come about save by generation, since the original number of mankind was two only. Therefore there would have been generation in the state of innocence.

In the state of innocence there would have been generation of offspring for the multiplication of the human race; otherwise man's sin would have been very necessary, for such a great blessing to be its result. We must, therefore, observe that man, by his nature, is established, as it were, midway between corruptible and incorruptible creatures, his soul being naturally incorruptible, while his body is naturally corruptible. We must also observe that nature's purpose appears to be different as regards corruptible and incorruptible things. For that seems to be the direct purpose of nature, which is invariable and perpetual; while what is only for a time is seemingly not the chief purpose of nature, but as it were, subordinate to something else; otherwise, when it ceased to exist, nature's purpose would become void.

Therefore, since in things corruptible none is everlasting and permanent except the species, it follows that the chief purpose of nature is the good of the species; for the preservation of which natural generation is ordained. On the other hand, incorruptible substances survive, not only in the species, but also in the individual; wherefore even the individuals are included in the chief purpose of nature.

Hence it belongs to man to beget offspring, on the part of the naturally corruptible body. But on the part of the soul, which is incorruptible, it is fitting that the multitude of individuals should be the direct purpose of nature, or rather of the Author of nature, Who alone is the Creator of the human soul. Wherefore, to provide for the multiplication of the human race, He established the begetting of offspring even in the state of innocence.

Article 2: Whether in the state of innocence there would have been generation by coition?

God made man and woman before sin (Gn. 1, 2). But nothing is void in God's works. Therefore, even if man had not sinned, there would have been such intercourse, to which the distinction of sex is ordained. Moreover, we are told that woman was made to be a help to man (Gn. 2:18, 20). But she is not fitted to help man except in generation, because another man would have proved a more effective help in anything else. Therefore there would have been such generation also in the state of innocence.

Some of the earlier doctors, considering the nature of concupiscence as regards generation in our present state, concluded that in the state of innocence generation would not have been effected in the same way. Thus Gregory of Nyssa says (De Hom. Opif. xvii) that in paradise the human race would have been multiplied by some other means, as the angels were multiplied without coition by the operation of the Divine Power. He adds that God made man male and female before sin, because He foreknew the mode of generation which would take place after sin, which He foresaw. But this is unreasonable. For what is natural to man was neither acquired nor forfeited by sin. Now it is clear that generation by coition is natural to man by reason of his animal life, which he possessed even before sin, as above explained (), just as it is natural to other perfect animals, as the corporeal members make it clear. So we cannot allow that these members would not have had a natural use, as other members had, before sin.

Thus, as regards generation by coition, there are, in the present state of life, two things to be considered. One, which comes from nature, is the union of man and woman; for in every act of generation there is an active and a passive principle. Wherefore, since wherever there is distinction of sex, the active principle is male and the passive is female; the order of nature demands that for the purpose of generation there should be concurrence of male and female. The second thing to be observed is a certain deformity of excessive concupiscence, which in the state of innocence would not have existed, when the lower powers were entirely subject to reason. Wherefore Augustine says (De Civ. Dei xiv, 26): "We must be far from supposing that offspring could not be begotten without concupiscence. All the bodily members would have been equally moved by the will, without ardent or wanton incentive, with calmness of soul and body."