Wilhelm Liebknecht, Ernest Untermann
1924 · Very good
€80
George Henry Lewes
1883 · Very good
€65
Rabindranath Tagore
1935 · Good
€30
Henry St. John Viscount Bolingbroke
1780 · Fine
€1,255
A. S. Neill
1933 · Good
€90
Henri Bergson, Nancy Margaret Paul
1902 · Good
€45
Maurice Maeterlinck
1935 · Good
€40
Adam Ferguson
1774 · Fair
€325
Eduard Zeller
1912 · Very good
€55
Arthur, comte de Gobineau
1911 · Fair
€30
Vladimir Il’ich Lenin, John Barber
1935 · Very good
€55
Edmund Husserl
1913 · Good
€45
John Edwin Sandys, Sir
1932 · Very good
€25
Bertrand Russell
1933 · Good
€60
René Descartes
1646 · Fair
€1,215
Ralph Waldo Emerson
1880 · Good
€60
Jacques Maritain
1935 · Good
€115
Willem Adriaan van Konijnenburg
1916 · Good · NL
€20
Sextus Empiricus.
1887 · Good
€40
Henri Poincaré, Francis Maitland
1907 · Good
€60
John Ruskin
1884 · Very good
€215
Plato
1917 · Good
€30
Thomas Burnet
1704 · Good
€335
Immanuel Kant
1812 · Good
€260
Jeremy Bentham
1821 · Good
€300
Eduard Zeller
1881 · Very good
€140
Giordano Bruno, Jorge Gudino
1912 · Fair
€20
David Hume
1762 · Fine
€415
Clemens Brentano
1894 · Very good
€45
David Hume
1883 · Good
€55
David Hume
1763 · Good
€395
René Descartes
1658 · Good
€1,805
James Anthony Froude
1884 · Fine
€95
Arthur Schopenhauer
1902 · Fair
€20
William Wordsworth, Nowell C. Smith
1925 · Good
€25
Rudolf Steiner
1932 · Fine
€40
Alfred Klemmt, George Berkeley
1740 · Good
€755
Etienne Bonnot de Condillac, Etienne Bonnot De Condillac
1793 · Good
€765
Friedrich Fröbel
1913 · Good
€20
Frédéric Bastiat
1873 · Fair
€30
Søren Kierkegaard
1803 · Very good
€275
Johann Heinrich Pestalozzi
1800 · Good
€200
Ernst Bloch
1920 · Very good
€30
Ernst Cassirer, Claus Rosenkranz
1935 · Good
€25
Samuel Smiles
1804 · Very good
€315
Jean Bodin
1597 · Good
€455
Johannes Hermanus Gunning
1876 · Very good · NL
€110
John Abercrombie, Jacob Abbott
1832 · Fine
€180
James Legge
1927 · Good
€25
Paul Henri Thiry baron d'Holbach
1775 · Good
€365
Henry Osborn Taylor
1917 · Good
€65
Benedictus de Spinoza, Seymour Feldman
1679 · Good
€705
Josiah Royce
1912 · Very good
€95
Gottfried Wilhelm Leibniz, Robert Zimmermann
1742 · Very good
€400
Georgiĭ Valentinovich Plekhanov
1899 · Very good
€145
Josiah Royce
1914 · Fair
€25
Berdoe, Edward
1903 · Very good
€30
Immanuel Kant
1802 · Good
€245
Jacques Maritain
1921 · Very good
€45
Walter Kerr
1911 · Good
€20