Sentence:  The reply to this objection is that the inability to suffer is the worst punishment that can befall a man ; he is by that same thing <WSD>deranked</WSD> from humanity ; the lowest hell into which a man can fall is that hell where there is no feeling, the hell in which a man may be without knowing it. 
Meaning of the word marked with <WSD> tags:  To lower the status or importance of