It is well known that Husserl considered phenomenology to be First Philosophy—the ultimate science. For Husserl, this means that phenomenology must clarify the ultimate phenomenological-epistemological principle that leads to ultimate elucidation. But what is this ultimate principle and what does ultimate elucidation mean? It is the aim of this paper to answer these questions. In section 2, we shall discuss what role Husserl’s principle of all principles can play in the quest for ultimate elucidation and what it means for a principle to be ultimately elucidating (letztaufklärend) and ultimately elucidated (letztaufgeklärt). We will see that the Husserlian thesis that originary presentive intuitions are an immediate and the ultimate source of justification qualifies as the ultimate epistemological principle.

中文翻译：

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胡塞尔的终极阐释计划和一切原则的原则

众所周知，胡塞尔认为现象学是第一哲学——终极科学。对于胡塞尔来说，这意味着现象学必须阐明导致最终阐明的最终现象学认识论原则。但是这个终极原则是什么，终极阐明是什么意思呢？本文的目的就是回答这些问题。在第 2 节中，我们将讨论胡塞尔的所有原则原则在寻求最终阐明中可以发挥什么作用，以及一个原则最终阐明意味着什么（letztaufklärend) 并最终阐明 (letztaufgeklärt）。我们将看到胡塞尔的论点，即原始的表象直觉是证明的直接和最终来源，这符合最终的认识论原则。