In using the key concepts,Heidegger investigates the original meaning of the concepts from the etymons,generates a series of new concepts to replace the former words so as to improve his thinking.

• 海氏在使用那些关键概念时呈现出这样的特点:非常注重从词源学角度考察概念的原初语义;不断繁衍出一系列新的概念去替换原有的语词,从而推进他的思想。