by Bertrand Russell
by William James
by Bertrand Russell
by baron d' Paul Henri Thiry Holbach
by William Henry Pyle
by William Walker Atkinson
by Mary F. Porter
by William James
by Robert Sessions Woodworth
by Wilhelm Max Wundt
by William James
by Wilhelm Max Wundt
by James Mark Baldwin
by James Mill
by baron d' Paul Henri Thiry Holbach
by Edward Bradford Titchener
by Thomas Brown
by Joseph Jastrow
by Lou Andreas-Salomé
by Hermann Ebbinghaus
by Sigmund Freud
by John Dewey
by Carl Ludwig Schleich
by Joseph-Remi-Leopold Delboeuf
by Charles Baudouin
by Antonino M.
by Rudolf Eisler
by E. R. (Elsie Riach) Murray