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William James , George Santayana , Bertrand Russell and George Herbert Mead , all borrowed his concept of the personality , or psyche , and sought it as a barrier against the claims of Gabriel Tarde , F. H. Bradley , and Josiah Royce .
 William James, George Santayana, Bertrand Russell, George Herbert Mead, Gabriel Tarde, F. H. Bradley, Josiah Royce
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 William James, George Santayana, Bertrand Russell, George Herbert Mead, Gabriel Tarde, F. H. Bradley, Josiah Royce