by Blaise Pascal
by Friedrich Wilhelm Nietzsche
by Arthur Schopenhauer
by William James
by Friedrich Wilhelm Nietzsche
by Arthur Schopenhauer
by Arthur Schopenhauer
by George Santayana
by Søren Kierkegaard
by Bertrand Russell
by Friedrich Wilhelm Nietzsche
by Bertrand Russell
by Arthur Schopenhauer
by Georg Wilhelm Friedrich Hegel
by John Dewey
by Arthur Schopenhauer
by Friedrich Wilhelm Nietzsche
by Benedictus de Spinoza
by Lev Shestov
by René Descartes
by David Hume
by Will Durant
by Havelock Ellis
by George Stuart Fullerton
by Benedetto Croce
by Abraham Cowley
by Boyd Henry Bode, Harold Chapman Brown, John Dewey, Horace Meyer Kallen, George H. Mead, Addison Webster Moore, Henry Waldgrave Stuart, James Hayden Tufts
by Plato
by Jaime Luciano Balmes
by Duchess of Margaret Cavendish Newcastle
by Denis Diderot
by G. E. (George Edward) Moore
by Joseph Dietzgen
by René Descartes
by Friedrich von Schlegel
by Remy de Gourmont
by marquis de Jean-Antoine-Nicolas de Caritat Condorcet, comte Nicolas Louis François de Neufchâteau, Blaise Pascal, Voltaire
by Herbert Spencer
by Arthur Schopenhauer
by Ralph Barton Perry
by Herbert Spencer
by Thomas Brown
by Johann Gottlieb Fichte
by John Cowper Powys
by Freiherr von Gottfried Wilhelm Leibniz
by Jaime Luciano Balmes
by Lev Shestov
by Thomas Taylor
by Benedetto Croce
by Friedrich Schiller
by Friedrich Engels
by Remy de Gourmont
by Jaime Luciano Balmes
by Jaime Luciano Balmes
by Dante Alighieri
by Jaime Luciano Balmes
by Maurice Maeterlinck
by F. Max (Friedrich Max) Müller
by Willard Huntington Wright
by Friedrich Schiller
by graf Leo Tolstoy
by Herbert Spencer
by Anonymous
by Arthur Schopenhauer
by Eino Kaila
by Plato
by Plato
by René Descartes
by H. Druskowitz
by Arachne
by Eduard von Hartmann
by Gustavo Sánchez Galarraga
by Adolf Hepner
by Herbert Spencer
by Federico De Roberto
by Wilhelm Jerusalem
by Dora Melegari
by Rudolf Eucken
by Rabindranath Tagore
by Arthur Christopher Benson
by Elek Szitnyai
by Robert Zimmermann
by Thomas Carlyle