The book begins by establishing the foundational definition of philosophy as a systematic comprehension of knowledge, an emotional attitude toward the cosmos, and a set of principles for conduct. The author contrasts this objective scientific world-conception with the subjective philosophies of thinkers like William James, Henri Bergson, and most notably, Friedrich Nietzsche. Nietzsche's thought is presented as the ultimate extreme of nominalism and particularism, where the objective world and universal truths are discarded in favor of the absolute sovereignty of the self.
The volume explores Nietzsche's biography, drawing heavily on the recollections of his lifelong friend Paul Deussen. These personal details illustrate the striking contrast between Nietzsche's gentle, tractable personal demeanor and the titanic, combative pretensions of his philosophical writings. The text analyzes how Nietzsche's physical ailments and lack of robust health fueled a romanticized longing for brute strength, power, and the aristocratic dominance of the overman.
A central portion of the work investigates the intellectual lineage of Nietzsche's egoism, comparing it directly with the ideas of Max Stirner. While Stirner's work championed the unique ego and egoistic anarchism without a lust for political power, Nietzsche twisted these concepts into an apology for the ruthless conqueror and the tyrant. The author demonstrates that both thinkers suffer from a fundamental misunderstanding of the nature of the individual, ignoring the reality and necessity of society, communal bonds, and objective moral norms.
Throughout the critique, the author defends the indispensable character of scientific objectivity, logical consistency, and the ethical consensus found across human civilizations. Nietzsche's rejection of truth and reason is shown to be a self-contradictory and immature philosophy of protest. The text argues that a denial of objective moral standards inevitably leads back to savagery and the brutal rule of might over right.
The work concludes by assessing the lasting appeal of Nietzsche's writings to marginalized individuals and restless reformers. While acknowledging Nietzsche's poetic brilliance and the rhetorical power of his prophetic style, the author ultimately dismisses his philosophy as a dangerous, unsound, and tragic aberration. The true overman, the text maintains, will not emerge from the destruction of morality by a violent catastrophe, but from the patient, rational cultivation of humaneness and truth.