by Friedrich Wilhelm Nietzsche
by Emperor of Rome Marcus Aurelius
by Aristotle
by Benedictus de Spinoza
by Friedrich Wilhelm Nietzsche
by David Hume
by Emperor of Rome Marcus Aurelius
by Immanuel Kant
by Immanuel Kant
by David Hume
by Friedrich Wilhelm Nietzsche
by Emperor of Rome Marcus Aurelius
by G. E. (George Edward) Moore
by Lucius Annaeus Seneca
by Friedrich Wilhelm Nietzsche
by Arthur Schopenhauer
by C.-F. (Constantin-François) Volney
by Arthur Schopenhauer
by John Dewey , James Hayden Tufts
by Henry Sidgwick
by Sir Thomas Browne
by Friedrich Wilhelm Nietzsche
by Eugenio María de Hostos
by Emperor of Rome Marcus Aurelius
by William De Witt Hyde
by Adam Smith
by Sir Thomas Browne
by Immanuel Kant
by William Edward Hartpole Lecky
by Havelock Ellis
by Aristotle
by Andrew P. (Andrew Preston) Peabody
by Benedictus de Spinoza
by Sir Thomas Browne
by Benedictus de Spinoza
by John Abercrombie
by Edward Westermarck
by William Kingdon Clifford
by Franz Brentano
by William Edward Hartpole Lecky
by Felix Adler
by Mrs. (Anna) Jameson
by Victor Cousin
by Paul Janet
by W. H. (William Hurrell) Mallock
by David Hume
by Benedictus de Spinoza
by Benedictus de Spinoza
by Benedictus de Spinoza
by Alexander Bain
by Walther Rathenau
by Joseph Butler
by Joseph Rickaby
by Benedictus de Spinoza
by Aristotle
by Durant Drake
by John Dewey
by Ralph Barton Perry
by John Ormsby Miller
by Robert Chenault Givler
by C.-F. (Constantin-François) Volney
by William De Witt Hyde
by Edwin Muir
by Felix Adler
by W. R. (William Ritchie) Sorley
by W. R. (William Ritchie) Sorley
by Herbert Spencer
by M. M. (Mangasar Mugurditch) Mangasarian
by Benedetto Croce
by Felix Adler
by W. R. Washington (William Robert Washington) Sullivan
by George Stuart Fullerton
by Rudolf Eucken
by M. (Milton) Valentine
by T. W. (Thomas William) Rolleston
by Dora Melegari
by Geoffrey Mortimer
by Zsigmond Bodnár
by José Ingenieros
by Immanuel Kant
by Arthur Christopher Benson
by Mark Hopkins
by George Herbert Palmer
by George Henry Lane Fox Pitt-Rivers
by Zsigmond Bodnár
by Giuseppe Mazzini