Why do we refuse to adopt this view, and to discontinue an endeavour the aims of which appear to be unattainable? In the first place, because the movement cannot be given up so easily as those critics imagine who adopt this view; for it does not consist simply of explanations and theories that might be completely refuted by rigorous argument, but a certain reality has been evolved, desires aroused, forces called into life, and movements inaugurated. Even if they halt in their course they were something; they do not disappear therefore before the attacks of Scepticism; further, however mean their results may be, they prove to be strong enough to indicate the limitations in the life of nature, and to make it inadequate for us. The matter is the more mysterious in that the striving is anything but a product of the natural desire for happiness. For the movement disturbs all our complacency; it leads man to be discontented with that which hitherto had fully satisfied him; it surrounds him with fixed organisations; desires from him much labour and sacrifice, and makes existence, not easier, but more difficult for him. Delusions are wont to deceive us by pleasing pictures; to attract us with the promise of pleasure and enjoyment. How does a delusion, that imposes so much toil and trouble upon us, win so much power over us? There is another matter to be considered in this connection. A complete renunciation can appear possible only because it is not clearly perceived how much which we cannot give up and which ultimately we have no desire to give up is involved in it. Only a want of clearness of thought, and still more a weakness of character, could wish to retain in the particular case what was given up as a whole; could affirm as effect what it denied as cause. As soon as this course is recognised to be impossible, it becomes evident that with the rejection of the spiritual life everything is abandoned which gives to our life dignity, greatness, and inner unity, and joins us to others with an inward bond. Realities such as love and honour, truth and right, must be regarded as empty forms; and even science must come to an end, because there is no longer any inner unity of work, no objective necessity.