Sentence:  On the contrary , even in the heart of `` the Bible belt '' itself , as can be attested by any one who is called to work there , the industrial and technological revolutions have long been under way , together with the corresponding changes in <WSD>man</WSD> 's picture of himself and his world . 
Meaning of the word marked with <WSD> tags:  the generic use of the word to refer to any human being