George Santayana
1918 · Very good
€70
Clemens Brentano
1894 · Very good
€45
Plato
1916 · Good
€20
Henri Bergson
1919 · Very good
€35
Sextus Empiricus.
1887 · Good
€40
Brooks Adams
1897 · Fine
€190
George Santayana
1920 · Very good
€40
Heraclitus of Ephesus
1918 · Good
€20
Friedrich Nietzsche, Marie-Luise Haase
1897 · Good
€75
Grant Allen
1910 · Good
€40
Thomas Aquinas Sister, originally Agnes O'Neil
1934 · Good
€75
H. G. Wells
1911 · Very good
€40
James Martineau
1935 · Very good
€80
Alfred North Whitehead, Bertrand Russell
1911 · Very good
€25
Eugen Horn
1900 · Good · NL
€50
George Adolphus Jacob
1908 · Very good
€35
Augustin Privat-Deschanel
1903 · Very good
€40
Henri Poincaré, Nicolae Sfetcu
1919 · Very good
€100
Henry Adams
1926 · Good
€90
Nikos Kazantzakis
1901 · Good
€25
Stefan Zweig
1935 · Good
€35
Walter Pater
1925 · Very good
€40
Mahaffy, John Pentland Sir
1918 · Good
€50
Emmanuel Levinas
1935 · Good
€35
Abraham Kuyper
1892 · Very good · NL
€50
Euripides
1856 · Good
€45
José Ortega y Gasset
1931 · Very good
€60
John Ruskin
1873 · Very good
€105
Peter Kropotkin
1910 · Fine
€50
Aristotle
1884 · Very good
€75
Otto Seemann
1895 · Very good
€95
Denis Diderot
1862 · Fine
€270
Peter Kropotkin
1925 · Very good
€35
James George Frazer
1920 · Very good
€35
Bavinck, Herman
1925 · Very good · NL
€25
Edwin A. Burtt
1926 · Very good
€25
Mary Whiton Calkins
1910 · Very good
€35
Thomas Whittaker
1907 · Good
€95
Augustine of Hippo
1857 · Very good
€75
Ernest Albee
1906 · Good
€20
Aristotle
1882 · Good
€95
Marcellus Emants
1900 · Very good · NL
€25
F. Max Müller
1910 · Very good
€35
Eduard Hanslick
1870 · Good
€60
Adam Storey Farrar
1879 · Good
€45
Henry Sidgwick
1893 · Good
€95
Jacob Van Beek
1921 · Good · NL
€25
Elizabeth Sanderson Haldane
1930 · Good
€95
Thomas Henry Huxley
1905 · Good
€70
Edmund Husserl
1913 · Good
€45
Henri Poincaré
1906 · Very good
€45
Johan Hendrik Gallée
1882 · Very good · NL
€110
Rudolf Steiner, Max Gysi
1910 · Very good
€25
Muir, Robert Sir, R MacSween
1935 · Very good
€80
Louis Dyer, Plato
1922 · Fine
€90
Ernst Cassirer
1930 · Good
€30
James Bonar
1910 · Good
€65
Annie Salomons
1923 · Very good · NL
€25
George Frederick Kunz
1935 · Very good
€40
Maximilien Marie
1925 · Fine
€35