1 “.... Geïnspireerd door Leo Apostel en in de voetsporen van William James en Erich Fromm, betoogt de auteur dat deze...”

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3 “...This volume assembles twenty-three essays by Erich S. Gruen, who has written extensively...”

4 “...This volume assembles twenty-three essays by Erich S. Gruen, who has written extensively...”

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6 “... Namen Max Scheler, Helmuth Plessner, Erich Rothacker, Arnold Gehlen, Adolf Portmann u. v. a. mehr...”

7 “... sintieron atraídos por las utopías sociales: Ernst Bloch. Gyorgy Lukács, Erich Fromm. Entre ambos, más allá...”