René Descartes
1912 · Very good
€85
Alfred North Whitehead, Yoshimi Fujikawa
1695 · Very good
€915
George Boole
1882 · Fine
€65
Norman Kemp Smith
1924 · Very good
€115
George Boole
1856 · Good
€90
Henry Longueville Mansel
1873 · Good
€60
Morris Raphael Cohen
1935 · Fine
€35
Auguste Comte
1867 · Fair
€50
George Santayana
1908 · Very good
€55
S. Laing
1916 · Good
€50
Colin MacLaurin
1753 · Very good
€835
Christian Wolff
1745 · Very good · NL
€300
Lydia Maria Child
1872 · Fair
€25
E. T. Feteris
1912 · Fair · NL
€25
A. S. Neill
1935 · Very good
€45
Mark Twain
1874 · Good
€50
Edmund Husserl
1913 · Good
€45
Mark Twain
1903 · Very good
€30
Pietro Aretino
1584 · Good
€1,630
Marion Lowell
1897 · Good
€55
Alfred L. Loomis
1877 · Good
€50
Cassius Jackson Keyser
1935 · Good
€50
Erasmus Darwin
1800 · Fair
€65
Berdoe, Edward
1903 · Very good
€30
Theodore Parker
1884 · Good
€45
Elias Loomis
1854 · Good
€105
F. Matthias Alexander
1935 · Fine
€35
Elias Loomis
1902 · Fine
€55
Jacques Loeb
1918 · Good
€35
Sextus Empiricus.
1887 · Good
€40
Immanuel Kant
1817 · Good
€80
John Russell Reynolds, Henry Hartshorne
1877 · Good
€35
Chancellor, William Estabrook
1908 · Good
€70
John Locke, Helene Bouchilloux
1743 · Very good
€490
Joannes Willem Huysinga
1913 · Good · NL
€40
Marion Harland
1875 · Good
€80
Martín Cortés
1570 · Good
€745
Yogananda Paramahansa
1931 · Fine
€125
Lewis Carroll
1918 · Very good
€80
Lucian of Samosata
1553 · Fair
€380
Multatuli
1878 · Good · NL
€115
Samuel Stanhope Smith
1793 · Fine
€925
Josiah Royce
1935 · Very good
€30
Jan Arnold Bennet
1852 · Very good · NL
€225
Carl David Tolmé Runge
1916 · Fine
€50
John William Norie
1886 · Good
€50
Logan, John Alexander, John Alexander Logan
1919 · Very good
€25
William Ellis
1808 · Good
€105
Adam Storey Farrar
1879 · Good
€45
Georgiĭ Valentinovich Plekhanov
1899 · Very good
€145
Martin Robison Delany
1865 · Good
€40
Aristotle
1901 · Good
€70
Galileo Galilei
1664 · Very good
€2,345
Arthur Schopenhauer
1912 · Good
€30
William Leybourn, Richard Sault
1696 · Good
€1,050
J. H. Poynting
1922 · Very good
€35
Florian Cajori
1907 · Very good
€45
Coles, Elisha
1698 · Good
€835
George Edward Howe
1907 · Good
€55
Jacob Abbott
1840 · Fine
€185