Morris Raphael Cohen
1935 · Fine
€35
George Boole
1882 · Fine
€65
Ludwig Wittgenstein, Isidoro Reguera Pérez
1935 · Good
€45
Louis Couturat
1935 · Good
€70
René Descartes
1912 · Very good
€85
Lewis Carroll
1886 · Fine
€250
Lewis Carroll
1918 · Very good
€80
Edmund Husserl
1913 · Good
€45
Aristotle
1579 · Fine
€1,405
Lewis Carroll
1914 · Very good
€25
George Boole
1856 · Good
€90
Sextus Empiricus.
1887 · Good
€40
Aristotle
1901 · Good
€70
Lucian of Samosata
1553 · Fair
€380
Alfred North Whitehead, Bertrand Russell
1911 · Very good
€25
Georg Wilhelm Friedrich Hegel
1813 · Very good
€110
Aristotle
1578 · Good
€465
C. Bruhns
1920 · Very good
€55
Adriaan Pit
1930 · Good · NL
€25
Lydia Maria Child
1872 · Fair
€25
Galileo Galilei
1664 · Very good
€2,345
Sir William Hamilton, 9th Baronet
1859 · Good
€75
Christian von Wolff
1773 · Good · NL
€215
Christian Wolff
1745 · Very good · NL
€300
Ernst Cassirer
1930 · Good
€30
Elias Loomis
1874 · Very good
€50
A. S. Neill
1933 · Good
€90
Plato
1843 · Fair
€60
Vignola
1655 · Very good
€1,630
Clara Erskine Clement Waters
1879 · Good
€50
Yogananda Paramahansa
1931 · Fine
€125
Seneca the Younger
1634 · Very good
€1,210
Marcet Mrs
1828 · Good
€155
Galileo Galilei
1644 · Very good
€2,340
Auguste Comte
1867 · Fair
€50
Desiderius Erasmus
1549 · Very good
€690
Euclid
1585 · Very good
€565
Lycophron
1560 · Very good
€1,690
Cassius Jackson Keyser
1935 · Good
€50
Josiah Royce
1928 · Fine
€125
Multatuli
1878 · Good · NL
€115
Immanuel Kant
1885 · Good
€190
L. E. J. Brouwer
1909 · Good · NL
€60
Coles, Elisha
1698 · Good
€835
Ferdinand Wolff
1859 · Good · NL
€40
Johannes Kepler
1616 · Fair
€1,400
Joannes Willem Huysinga
1913 · Good · NL
€40
Seneca the Younger
1909 · Very good
€60
Vega, Georg Freiherr von
1803 · Good
€190
Josiah Royce
1898 · Very good
€75
Neale Donald Walsch
1924 · Very good
€25
Michael Faraday
1874 · Fine
€65
Rudolf Steiner, Robert A. McDermott
1933 · Very good
€85
Freda Dinn
1903 · Very good
€35
Simon Berington
1758 · Very good
€240
Plato
1883 · Fair
€85
E. V. Lucas
1924 · Good
€20
M. J. van Baarda
1915 · Fair · NL
€15
Aristotle
1882 · Good
€95
Brooks Adams
1897 · Fine
€190