Ralph Waldo Emerson
Antoine Fabre d'Olivet
George Ticknor Curtis
George Berkeley
Thomas Whittaker
Giovanni Gentile
George Santayana
Walter Crane
Amos Bronson Alcott
A. E. Taylor
Sepharial
Nostradamus (ed. Charles A. Ward)
George H. McNair
Walter R. Spalding
Yrjö Hirn
William Caldwell
Johann Friedrich Herbart
E. J. MacGillivray
Mary Parker Follett
Johann Joachim Winckelmann
Max Stirner (tr. Steven T. Byington)
Auguste Comte
Paul Eltzbacher
A. H. Noe
