THE PLEASURE IN DISCERNMENT.--Why is discernment, that essence of the searcher and the philosopher, connected with pleasure? Firstly, and above all, because thereby we become conscious of our strength, for the same reason that gymnastic exercises, even without spectators, are enjoyable. Secondly, because in the course of knowledge we surpass older ideas and their representatives, and become, or believe ourselves to be, conquerors. Thirdly, because even a very little new knowledge exalts us above _every one,_ and makes us feel we are the only ones who know the subject aright. These are the three most important reasons of the pleasure, but there are many others, according to the nature of the discerner. A not inconsiderable index of such is given, where no one would look for it, in a passage of my parenetic work on Schopenhauer,[2] with the arrangement of which every experienced servant of knowledge may be satisfied, even though he might wish to dispense with the ironical touch that seems to pervade those pages. For if it be true that for the making of a scholar "a number of very human impulses and desires must be thrown together," that the scholar is indeed a very noble but not a pure metal, and "consists of a confused blending of very different impulses and attractions," the same thing may be said equally of the making and nature of the artist, the philosopher and the moral genius--and whatever glorified great names there may be in that list. _Everything_ human deserves ironical consideration with respect to its _origin,_--therefore irony is so _superfluous_ in the world. 253. FIDELITY AS A PROOF OF VALIDITY.--It is a perfect sign of a sound theory if during _forty years_ its originator does not mistrust it; but I maintain that there has never yet been a philosopher who has not eventually deprecated the philosophy of his youth. Perhaps, however, he has not spoken publicly of this change of opinion, for reasons of ambition, or, what is more probable in noble natures, out of delicate consideration for his adherents. 254. THE INCREASE OF WHAT IS INTERESTING.--In the course of higher education everything becomes interesting to man, he knows how to find the instructive side of a thing quickly and to put his finger on the place where it can fill up a gap in his ideas, or where it may verify a thought. Through this boredom disappears more and more, and so does excessive excitability of temperament. Finally he moves among men like a botanist among plants, and looks upon himself as a phenomenon, which only greatly excites his discerning instinct. 255.