Synthesized answer
The provided passages discuss the themes and ideas explored in Friedrich Nietzsche's works, "The Birth of Tragedy" and "The Genealogy of Morals." These themes include the conflict between moral and aesthetic approaches to life, the influence of Christianity on human values, and the significance of science [1]. The passages also highlight the contrast between the Apollonian and Dionysian spirits as a central idea in Nietzsche's thought [1].
However, the passages do not contain specific information regarding the "practical implications" of these ideas. While the passages indicate that Nietzsche's themes have made him a figure of "the first magnitude for contemporary thought" [1], they do not detail what those practical implications are.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: The birth of tragedy. The genealogy of morals by Friedrich Nietzsche Description: The Birth of Tragedy (1872) was Nietzsche's first book; The Genealogy of Morals (1887) one of his last. Both are about the conflict between the moral and aesthetic approaches to life, the impact of Christianity on human values, the meaning of science, the famous contrast between the Apollonian and Dionysian spirits, and the other themes that dominated Nietzsche's life and have made him a figure of the first magnitude for contemporary thought.