When once psychoanalysis has been applied in a suitable case, it is _imperative_ that rational solutions of the conflicts should be found. The objection is at once advanced that many conflicts are intrinsically incapable of solution. That view is sometimes taken because only an external solution is thought of--and that, at bottom, is no real solution at all. If a man cannot get on with his wife he naturally thinks the conflict would be solved if he were to marry some one else. If such marriages are examined they are seen to be no solution whatsoever. The old Adam enters upon the new marriage and bungles it just as badly as he did the earlier one. _A real solution comes only from within, and only then because the patient has been brought to a new standpoint._ Where an external solution is possible no psychoanalysis is necessary; in seeking an internal solution we encounter the peculiar virtues of psychoanalysis. The conflict between "love and duty" must be solved upon that particular plane of character where "love and duty" are no longer in opposition, for indeed they really are not so. The familiar conflict between "instinct and conventional morality" must be solved in such a way that both factors are taken satisfactorily into account, and this is only possible through a change of character. This change psychoanalysis can bring about. In such cases external solutions are worse than none at all. Naturally the particular situation dictates which road the doctor must ultimately follow, and what is then his duty. I regard the conscience-searching question of the doctor's remaining true to his scientific convictions as rather unimportant in comparison with the incomparably weightier question as to how he can best help his patient. The doctor _must_, on occasion, be able to play the augur. _Mundus vult decipi_--but the cure is no deception. It is true that there is a conflict between ideal conviction and concrete possibility. _But we should ill prepare the ground for the seed of the future, were we to forget the tasks of the present, and sought only to cultivate ideals._ That is but idle dreaming. Do not forget that Kepler cast horoscopes for money, and that countless artists have been condemned to work for wages. V. _From Dr. Loÿ._ 9th February, 1913. The selfsame passion for truth possesses us both when we think of pure research, and the same desire to cure when we are considering therapy. For the scientist, as for the doctor, we desire the fullest freedom in all directions, fullest freedom to select and use the methods which promise the best fulfilment of their ends at any moment. Here we are at one; but there remains a postulate we must establish to the satisfaction of others if we want recognition for our views.