Now, we do not know, in the further discussion of this statement, whether to emphasize the nature of denial or the individuality of the person affected by it. Denial is very rarely complete and absolute; to cause a pathological condition, the specific gratification desired by the particular person in question must be withheld, the certain satisfaction of which he alone is capable. On the whole there are many ways of enduring abstinence from libidinous gratification without succumbing to a neurosis by reason thereof. Above all we know of people who are able to endure abstinence without doing themselves injury; they are not happy under the circumstances, they are filled with yearning, but they do not become ill. Furthermore, we must take into consideration that the impulses of the sex instinct are extraordinarily _plastic_, if I may use that term in this connection. One thing may take the place of the other; one may assume the other's intensity; if reality refuses the one gratification, the satisfaction of another may offer full compensation. The sexual impulses are like a network of communicating channels filled with fluids; they are this in spite of their subjugation to the primacy of the genitals, though I realize it is difficult to unite these two ideas in one conception. The component impulses of sexuality as well as the total sexual desire, which represents their aggregate, show a marked ability to change their object, to exchange it, for instance, for one more easily attainable. This displacement and the readiness to accept substitutes must exert powerful influences in opposition to the pathological effect of abstinence. Among these processes which resist the ill effects of abstinence, one in particular has won cultural significance. Sexual desire relinquishes either its goal of partial gratification of desire, or the goal of desire toward reproduction, and adopts another aim, genetically related to the abandoned one, save that it is no longer sexual but must be termed social. This process is called "sublimation," and in adopting this process we subscribe to the general standard which places social aims above selfish sexual desires. Sublimation is, as a matter of fact, only a special case of the relation of sexual to non-sexual desires. We shall have occasion to talk more about this later in another connection.