Sentence:  He and also Mr. Cowley and Mr. Warren have fallen to the temptation which besets many of us to read into our authors - Nathaniel Hawthorne , for example , and Herman Melville - protests against modernism , material progress , and science which are genuine protests of our own but may not have <WSD>been</WSD> theirs . 
Meaning of the word marked with <WSD> tags:  be identical to; be someone or something