Final answer:
Nietzsche used aphorisms and maxims to express his philosophical ideas, offering concise statements that capture his critical views of morality, power, and existential issues.
Step-by-step explanation:
Friedrich Nietzsche expressed his philosophical ideas primarily through aphorisms and maxims. An aphorism is a concise, terse statement that conveys a principle or truth in a witty or profound way, which Nietzsche often utilized to critique and propose ideas about morality, power, and existence. A maxim, similarly, is a general truth, fundamental principle, or rule of conduct, which Nietzsche also employed in his works to convey his perspectives, particularly on the matter of will to power and the nature of human ethics.
Nietzsche did not create manifestos or novels to express his philosophical concepts, even though his ideas do weave narratives of historical development and moral psychology.