Morris Raphael Cohen
1935 · Fine
€35
George Boole
1882 · Fine
€65
Lewis Carroll
1918 · Very good
€80
Lewis Carroll
1886 · Fine
€250
Lewis Carroll
1914 · Very good
€25
Louis Couturat
1935 · Good
€70
Georg Wilhelm Friedrich Hegel
1813 · Very good
€110
Ludwig Wittgenstein, Isidoro Reguera Pérez
1935 · Good
€45
George Boole
1856 · Good
€90
Edmund Husserl
1913 · Good
€45
Sextus Empiricus.
1887 · Good
€40
René Descartes
1912 · Very good
€85
C. Bruhns
1920 · Very good
€55
Sir William Hamilton, 9th Baronet
1859 · Good
€75
Aristotle
1901 · Good
€70
Aristotle
1578 · Good
€465
Aristotle
1579 · Fine
€1,405
Elias Loomis
1874 · Very good
€50
A. S. Neill
1933 · Good
€90
Adriaan Pit
1930 · Good · NL
€25
Plato
1843 · Fair
€60
Cassius Jackson Keyser
1935 · Good
€50
Ernst Cassirer
1930 · Good
€30
Alfred North Whitehead, Bertrand Russell
1911 · Very good
€25
Lucian of Samosata
1553 · Fair
€380
E. R. Hedrick
1920 · Very good
€60
Josiah Royce
1898 · Very good
€75
G. F. Rodwell
1873 · Good
€70
Josiah Royce
1914 · Fair
€25
Edmund Wingate
1652 · Fair
€355
Henry Longueville Mansel
1873 · Good
€60
Coles, Elisha
1698 · Good
€835
Aristotle
1882 · Good
€95
Abraham de Moivre
1734 · Good
€750
Lydia Maria Child
1872 · Fair
€25
Jacques Loeb
1918 · Good
€35
Walter Marshall
1692 · Fine
€725
Vega, Georg Freiherr von
1803 · Good
€190
H. G. Wells
1911 · Very good
€40
Christian Wolff
1745 · Very good · NL
€300
Joseph Butler
1752 · Very good
€275
Josiah Royce
1935 · Very good
€30
Joseph Louis Lagrange, Thomas J. McCormack
1898 · Good
€40
Joseph Butler
1762 · Good
€265
Walter Rauschenbusch
1917 · Good
€30
Abraham Tucker
1817 · Good
€135
Thomas Simpson
1751 · Very good
€660
Auguste Comte
1867 · Fair
€50
Michael Faraday
1874 · Fine
€65
Yogananda Paramahansa
1931 · Fine
€125
John Ward (of Chester)
1708 · Good
€305
A. S. Neill
1935 · Very good
€45
Nicolas Malebranche
1693 · Very good
€600
Rudolf Steiner, Robert A. McDermott
1933 · Very good
€85
Chancellor, William Estabrook
1908 · Good
€70
Galileo Galilei
1664 · Very good
€2,345
Roger Eliot Fry
1921 · Fair
€55
Josiah Royce
1912 · Very good
€95
Joseph Butler
1740 · Fair
€210
Neale Donald Walsch
1924 · Very good
€25