in the genital organs, and is caused by their motions, the irregular motions of the flesh. Sensual pleasure is other than venereal, and rises from indulgence of the senses, from the contemplation of a beautiful picture, from listening to sweet music, from touching the glossy and soft coat of a cat. This sensual pleasure is morally harmless in itself, but there is a certain kind of pleasure which is sensual in its origin but which is connected with, and ordinarily causes, venereal pleasure. It arises from such acts as voluptuous kissing, and is called by divines venereo-sensual. On account of its connection and tendency, venereo-sensual pleasure is evil, and ordinarily is more or less sinful, as we shall see in what follows.
Sins of impurity are consummated or non-consummated. Peccata consummata procedunt usque ad perfectam voluptatem veneream, quae habetur per copulam vel per pollutionem. Sunt consummata juxta naturam si exinde generatio prolis sequi possit, aliter sunt consummata contra naturam. Non- consummata peccata sunt aspectus, tactus, colloquium impudicum, quae non pertingunt usque ad perfectam voluptatem veneream.
2. All sins of impurity of whatever kind or species are of themselves mortal. This doctrine is taught in such passages of Holy Scripture as the following: i Cor. vi 9-10; Gal. v 19; Matt, v 28. Moreover, as we saw above, those sins are grievous which cause great harm to society or to the individual; but there is scarcely any cause so prolific of public and private evil of all sorts as sins of impurity, so that we must conclude that they are grievous even by the light of reason. Furthermore, all sins of impurity, if voluntary in themselves and fully deliberate, are mortal; or in other words, it is grievously sinful directly to seek any even slight unlawful venereal pleasure, or to consent to it deliberately even when it has not been directly sought.
This doctrine is the approved teaching of theologians, and it has a rational basis, inasmuch as the tendency of men to these sins is so strong and their weakness so great, that slight indulgence in venereal pleasure almost necessarily leads to grave excesses, so that even in light matter there is the whole reason of the prohibition, and so all sins of impurity, if fully deliberate and voluntary in themselves, are mortal, and there are none that are venial merely on account of parvity of matter.
On the other hand, if venereal pleasure is not voluntary in itself but only in its cause, nor deliberately consented to when it arises, although it was foreseen that it would follow from