Sentence:  We admit Nothing to exist; Nothing is an intelligible distinction; we talk of thinking Nothing and of perceiving Nothing: in other words, Nothing is the abstraction from every <WSD>discrimen</WSD> or particularity. But an abstraction from every <WSD>discrimen</WSD>, does not involve the destruction of every or any <WSD>discrimen</WSD>, all <WSD>discrimina</WSD> still exist; in Nothing we have simply withdrawn into indefiniteness. 
Meaning of the word marked with <WSD> tags:  A distinction, particularity, or distinguishing feature.