Johann Heinrich Pestalozzi
1833 · Good
€155
Robert Flint
1932 · Very good
€40
Sarvepalli Radhakrishnan
1929 · Very good
€95
Henri Poincaré, Francis Maitland
1907 · Good
€60
Friedrich Fröbel
1919 · Good
€20
Johann Gottfried Herder
1801 · Good
€305
Herbert Spencer
1894 · Very good
€185
Maurice Maeterlinck
1906 · Very good
€45
Alfred North Whitehead
1931 · Fine
€60
Ralph Waldo Emerson
1880 · Good
€60
Clive Bell
1924 · Very good
€115
Epictetus
1657 · Fine
€2,875
David Hume
1762 · Fine
€415
Maurice Joly, Veronica S. Jesus
1872 · Good
€65
Pierre Charron
1609 · Good
€980
George Santayana, Colin D. Standish
1935 · Good
€55
Stefan Zweig
1935 · Good
€35
Saint Clement of Alexandria
1901 · Very good
€25
Ralph Waldo Emerson
1851 · Very good
€130
Mikhail Aleksandrovich Bakunin
1892 · Good
€35
Georg Wilhelm Friedrich Hegel
1813 · Very good
€110
Edward Carpenter
1914 · Very good
€70
Rudolf Otto
1929 · Fine
€35
Peter Kropotkin
1903 · Fair
€15
Xenophon
1554 · Good
€645
Alexander Campbell Fraser
1901 · Good
€75
Cicero
1728 · Good
€180
Benedictus de Spinoza
1899 · Very good
€50
George Henry Lewes
1883 · Very good
€65
Georgiĭ Valentinovich Plekhanov
1899 · Very good
€145
Plato
1812 · Fair
€95
Inge, William Ralph
1926 · Fine
€50
Arthur Schopenhauer
1912 · Good
€30
Jacob Burckhardt
1935 · Very good
€80
Rudolf Steiner
1898 · Fair
€25
Oliver Wendell Holmes, Sr.
1910 · Good
€60
Adam Smith, Andrew Skinner
1790 · Good
€310
Johann Gottlieb Fichte
1910 · Very good
€60
Library of Congress. Subject Cataloging Division.
1935 · Good
€70
Gilbert Keith Chesterton
1929 · Very good
€50
John Stuart Mill
1908 · Good
€50
Peter Kropotkin
1886 · Very good
€60
William James
1917 · Very good
€55
Ibn Khaldūn, عبد الرحمن ابن خلدون Abdel Rahman Ibn Khaldun
1863 · Good
€75
Hugo Grotius
1629 · Good
€545
Moses Maimonides
1524 · Fine
€1,725
Eduard Zeller
1912 · Very good
€55
George Berkeley
1915 · Very good
€50
Arthur Schopenhauer
1902 · Fair
€20
Alfred North Whitehead, Yoshimi Fujikawa
1695 · Very good
€915
Bavinck, Herman
1925 · Very good · NL
€25
Willem Adriaan van Konijnenburg
1916 · Good · NL
€20
Rudolf Steiner, Hard Head Publications
1896 · Very good
€95
James Anthony Froude
1884 · Fine
€95
Martin Buber
1922 · Good
€45
Henri Bergson, Nancy Margaret Paul
1902 · Good
€45
Seneca the Younger
1531 · Fair
€1,440
Thomas Cogswell Upham
1835 · Fair
€120
Vladimir Il’ich Lenin, John Barber
1935 · Very good
€55
F. Max Müller
1914 · Very good
€25