Synthesized answer
The author, Friedrich Nietzsche, provides evidence of his "becoming and self-overcoming" through his four short works in *Untimely Meditations* [Passage 1]. He also believed these works constitute a "public pledge" regarding his distinctive task as a philosopher [Passage 1].
These four essays, published between 1873 and 1876, deal with broad topics such as popular versus genuine culture, cultural reform, the task of philosophy, education, and the relationship between art, science, and life [Passage 1]. They also include Nietzsche's earliest statement of his selfhood as a process of "becoming who one is" [Passage 1]. The passages state that these texts are key to understanding the development of Nietzsche's thought and anticipate themes in his later writings [Passage 1]. However, the passages do not detail specific examples or arguments that Nietzsche uses as evidence within these works.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Untimely Meditations by Friedrich Nietzsche Description: The four short works in Untimely Meditations were published by Nietzsche between 1873 and 1876. They deal with such broad topics as the relationship between popular and genuine culture, strategies for cultural reform, the task of philosophy, the nature of education, and the relationship between art, science and life. They also include Nietzsche's earliest statement of his own understanding of human selfhood as a process of endlessly 'becoming who one is'. As Daniel Breazeale shows in his introduction to this new edition of R.J.…