The point of view thus gained in regard to the perversions can now be employed by us in penetrating more deeply, with a clearer perspective, into the problem of infantile sexuality; but before doing this I must draw your attention to an important difference between the two. Perverse sexuality is as a rule exceedingly concentrated, its whole activity is directed to one—and mostly to only one—aim; one particular component-impulse is supreme; it is either the only one discernible or it has subjected the others to its own purposes. In this respect there is no difference between perverse and normal sexuality, except that the dominating component-impulse, and therefore the sexual aim, is a different one. Both of them constitute a well-organized tyranny; only that in one case one ruling family has usurped all the power, and in the other, another. This concentration and organization, on the other hand, is in the main absent from infantile sexuality; its component-impulses are equally valid, each of them strives independently after its own pleasure. Both the lack of this concentration (in childhood) and the presence of it (in the adult) correspond well with the fact that both normal and perverse sexuality are derived from the same source, namely, infantile sexuality. There are indeed also cases of perversion which correspond even more closely to infantile sexuality in that numerous component-instincts, independently of one another, with their aims, are developed or, better, perpetuated in them. With these cases it is more correct to speak of infantilism than of perversion of the sexual life.