Hence, if we set out to inquire whether the balance is on the side of pleasure or of pain, we must allow in our calculation for the pleasure of striving, the pleasure of the satisfaction of striving, and the pleasure which comes to us without any striving whatever. On the debit side we shall have to enter the displeasure of boredom, the displeasure of unfulfilled striving, and, lastly, the displeasure which comes to us without any striving on our part. Under this last heading we shall have to put also the displeasure caused by work that has been forced upon us, not chosen by ourselves. This leads us to the question, What is the right method for striking the balance between the credit and the debit columns? Eduard von Hartmann asserts that reason holds the scales. It is true that he says (Philosophie des Unbewussten, 7th edition, vol. ii. p. 290): "Pain and pleasure exist only in so far as they are actually being felt." It follows that there can be no standard for pleasure other than the subjective standard of feeling. I must feel whether the sum of my disagreeable feelings, contrasted with my agreeable feelings, results in me in a balance of pleasure or of pain. But, notwithstanding this, Von Hartmann maintains that "though the value of the life of every being can be set down only according to its own subjective measure, yet it follows by no means that every being is able to compute the correct algebraic sum of all the feelings of its life--or, in other words, that its total estimate of its own life, with regard to its subjective feelings, should be correct." But this means that rational estimation of feelings is reinstated as the standard of value. [12] It is because Von Hartmann holds this view that he thinks it necessary, in order to arrive at a correct valuation of life, to clear out of the way those factors which falsify our judgment about the balance of pleasure and of pain. He tries to do this in two ways: first, by showing that our desire (instinct, will) operates as a disturbing factor in the sober estimation of feeling-values; e.g., whereas we ought to judge that sexual enjoyment is a source of evil, we are beguiled by the fact that the sexual instinct is very strong in us, into pretending to experience a pleasure which does not occur in the alleged intensity at all. We are bent on indulging ourselves, hence we do not acknowledge to ourselves that the indulgence makes us suffer. Secondly, Von Hartmann subjects feelings to a criticism designed to show, that the objects to which our feelings attach themselves reveal themselves as illusions when examined by reason, and that our feelings are destroyed from the moment that our constantly growing insight sees through the illusions.