Clemens Brentano
1894 · Very good
€45
Edwin A. Burtt
1926 · Very good
€25
James Martineau
1935 · Very good
€80
Bavinck, Herman
1925 · Very good · NL
€25
Henri Bergson
1919 · Very good
€35
Augustin Privat-Deschanel
1903 · Very good
€40
Stefan Zweig
1935 · Good
€35
Mary Whiton Calkins
1910 · Very good
€35
H. G. Wells
1911 · Very good
€40
Friedrich Nietzsche, Marie-Luise Haase
1897 · Good
€75
Walter Crane
1911 · Very good · NL
€25
Henry Adams
1926 · Good
€90
René Descartes
1860 · Fair
€55
Henry Sidgwick
1893 · Good
€95
F. Max Müller
1910 · Very good
€35
Grant Allen
1910 · Good
€40
George Santayana
1918 · Very good
€70
Eduard Hanslick
1870 · Good
€60
George Santayana
1920 · Very good
€40
Abraham Kuyper
1892 · Very good · NL
€50
Henri Poincaré, Nicolae Sfetcu
1919 · Very good
€100
Alfred North Whitehead
1931 · Fine
€60
Elizabeth Sanderson Haldane
1930 · Good
€95
Adolf von Harnack
1889 · Fair
€40
Jacob Abbott
1864 · Fair
€40
Henri Poincaré
1906 · Very good
€45
Parmenides.
1902 · Fair
€35
Peter Kropotkin
1910 · Fine
€50
James Bonar
1910 · Good
€65
John Dewey
1935 · Good
€30
Thomas Henry Huxley
1905 · Good
€70
Sextus Empiricus.
1887 · Good
€40
Muir, Robert Sir, R MacSween
1935 · Very good
€80
Emmanuel Levinas
1935 · Good
€35
Sir William Hamilton, 9th Baronet
1859 · Good
€75
Ernst Cassirer
1930 · Good
€30
Denis Diderot
1862 · Fine
€270
Rudolf Steiner, Max Gysi
1910 · Very good
€25
Brooks Adams
1897 · Fine
€190
Edmund Husserl
1913 · Good
€45
George Adolphus Jacob
1908 · Very good
€35
Adam Storey Farrar
1879 · Good
€45
Florian Cajori
1929 · Good
€65
Alfred North Whitehead, Bertrand Russell
1911 · Very good
€25
Ernest Albee
1906 · Good
€20
Plato
1873 · Fair
€105
Willem Bilderdijk
1864 · Good · NL
€85
Claude Bernard
1870 · Very good
€130
Windisch, Hans
1926 · Fine · NL
€125
Abraham Kuyper
1890 · Very good · NL
€45
John Dewey
1910 · Fine
€30
Guillaume Groen van Prinsterer
1868 · Very good · NL
€70
Agnes Repplier
1894 · Very good
€45
Heraclitus of Ephesus
1918 · Good
€20
Jonneke Bekkenkamp
1903 · Good · NL
€45
Plato
1916 · Good
€20
Erwin Rohde
1902 · Fair
€15
A. S. Neill
1933 · Good
€90
George Grote
1871 · Fair
€45
John Edwin Sandys, Sir
1932 · Very good
€25