Heidegger's First Systematic Public Expression of Abyss Philosophy in His Later Years:Five Dimensions of Abyss Question in Basic Principles of Thought
The five speeches contained in The Basic Principles of Thought,unexplicitly establish an overall con-nection based on the abyss as a key position,and are also the first systematic public expression of Heidegger's a-byssal philosophy.Basic Principles of Thought reveals the five dimensions of the abyss:abandoning from the ground of metaphysics,jumping to the abyss,the abyss as event,the abyssal characteristics in the metaphysical argumentation and other aspects,the abyssal ground as the essence of language.To a certain extent,this also ex-pands the linguistic dimension of abyssal philosophy in Contributions to Philosophy,and reveals the path of Hei-degger's thought from"the locality of beyng"to"the topology of beyng".