Nietzsche challenges the Christian idea of good and evil, as it was philosophized by Arthur Schopenhauer. At the waterfall. When we see a waterfall, we think we see freedom of will and choice in the innumerable turnings, windings, breakings of the waves; but everything is necessary; each movement can be calculated mathematically. Thus it is with human actions; if one were omniscient, one would be able to calculate each individual action in advance, each step in the progress of knowledge, each error, each act of malice. To be sure the acting man is caught in his illusion of volition; if the wheel of the world were to stand still for a moment and an omniscient, calculating mind were there to take advantage of this interruption, he would be able to tell into the farthest future of each being and describe every rut that wheel will roll upon. The acting man's delusion about himself, his assumption that free will exists, is also part of the calculable mechanism. From the Soul of Artists and Writers Nietzsche uses this section to denounce the idea of divine inspiration in art, claiming that great art is the result of hard work, not a higher power or 'genius'. This can be interpreted as a veiled attack on his former friend Wagner (a strong believer in genius), though Nietzsche never mentions him by name, instead simply using the term 'the artist'. Signs of Higher and Lower Culture Here, Nietzsche criticizes Charles Darwin, as he frequently does, for being naive and derivative of Thomas Hobbes and early English economists, as well as for being without an account of life from the 'inside'. Consider, in this light, Darwin's own introduction to the first edition of Origin; also Nietzsche's critique to the effect that Darwinism, as typically understood, is trading in a new version of the Providential: Wherever progress is to ensue, deviating natures are of greatest importance. Every progress of the whole must be preceded by a partial weakening. The strongest natures retain the type, the weaker ones help to advance it. Something similar also happens in the individual. There is rarely a degeneration, a truncation, or even a vice or any physical or 'moral' loss without an advantage somewhere else. In a warlike and restless clan, for example, the sicklier man may have occasion to be alone, and may therefore become quieter and wiser; the one-eyed man will