論「有無」並非適任的形上學概念 -- 以《密嚴經》和《入楞伽經》為主要依據=On"Existence/Non-existence"as Unqualified Metaphysical Concepts: Mainly Based on the Ghana-vyūha-sūtra and Lankāvatāra-sūtra
This paper begins with the postulate that the concepts of existence/ non-existence are assertive and investigates whether this pair of assertive concepts may be directly adopted so as to properly qualify as metaphysical concepts. After close study of the two major sources, the Ghana-vyūha-sūtra and Lavkāvatāra-sūtra, as well as textual studies, analysis of concepts, contemplating perspectives, and reasoning the deliberations, it leads to the conclusion that existence/ nonexistence do not qualify as metaphysical concepts. The axis of the thinking and reasoning in this paper tries to take the concepts of existence/ non-existence as an interface, aim to reveal the “reality” of the life world, and shed some lights on research into philosophy of life on metaphysics. The arguments are strung together by seven sections. The first section introduces the main theme, the initial thinking and the structure of this research. Section two defines the main theme in three segments. Segment one focuses on the possible discrepancy between concepts and reality, consequently differentiates the qualified and unqualified metaphysical concepts. Segment two analyzes the semantics and forms of the non-existence. Segment three expounds on the topics this article intends to discuss. Section three explicates what can be illuminated on the topic of assertions by shifting from bounded assertions to trans-boundary assertions. Section four refers to some quotations on neither existence/ nor non-existence in sutras such as the ?gama-sūtras and Prajñāpāramitā-Sūtras. Section five delineates the neither existence/ nor non-existence doctrine in the Ghana-vyūha-sūtra. Section six delineates the neither existence/ nor non-existence doctrine in the Lavkāvatāra-sūtra. Section seven, conclusion and vision, summarizes the main points of this article and points out the relevant further studies in the future.