Morris Raphael Cohen
1935 · Fine
€35
George Boole
1882 · Fine
€65
René Descartes
1912 · Very good
€85
Adriaan Pit
1930 · Good · NL
€25
Aristotle
1901 · Good
€70
Plato
1843 · Fair
€60
A. S. Neill
1935 · Very good
€45
Auguste Comte
1867 · Fair
€50
Rudolf Otto
1929 · Fine
€35
Josiah Royce
1903 · Very good
€65
Louis Couperus
1906 · Very good · NL
€50
Marcet Mrs
1828 · Good
€155
Yogananda Paramahansa
1931 · Fine
€125
Charles Hutton
1812 · Very good
€245
Longinus
1613 · Good
€1,580
Felix O'Gallagher
1786 · Good
€265
Constantin-François Volney
1796 · Fine
€355
John Wesley
1796 · Very good
€575
William Wollaston, William Wollaston
1754 · Fine
€325
Friedrich Fröbel
1913 · Good
€20
Louis Couperus
1904 · Very good · NL
€25
René Descartes
1655 · Fine
€1,820
Ludvig Holberg
1776 · Good
€190
Plato
1917 · Good
€30
Bernard Boedder
1897 · Fair
€40
Sturm, Christoph Christian
1815 · Very good
€95
Georg Wilhelm Friedrich Hegel
1935 · Good
€100
Charles Buck
1831 · Good
€90
Jean-Antoine-Nicolas de Caritat marquis de Condorcet
1816 · Good
€270
Herman Gorter
1935 · Very good · NL
€40
Alfred Daniell
1888 · Good
€70
Rudolf Otto, Otto, Rudolf (Carl Ludwig Rudolf), 1869-1937.
1929 · Fair
€15
Roger Eliot Fry
1931 · Very good
€30
Joseph Le Conte
1928 · Very good
€30
Thomas Simpson
1751 · Very good
€660
Immanuel Kant, Kant
1816 · Very good
€155
Schwegler, Albert
1864 · Fine
€120
Herbert Spencer
1867 · Good
€45
Desmond Morris
1774 · Good
€535
Friedrich Christian Accum
1816 · Good
€110
Anthony Rich
1899 · Fair
€30
G. Wisse
1908 · Very good · NL
€30
Plato
1864 · Good
€100
William Kingdon Clifford
1914 · Fair
€35
Thomas Troward
1922 · Good
€30
Henri Bergson, Frank Lubecki Pogson
1896 · Good
€60
Gottfried Wilhelm Leibniz
1721 · Good
€460
Vignola
1655 · Very good
€1,630
Leonhard Euler
1805 · Fair
€60
Bertrand Russell
1935 · Good
€85
Colin MacLaurin
1753 · Very good
€835
Peter Willem Hendrik Truyen
1901 · Fair · NL
€15
F. Pijper
1915 · Very good · NL
€40
Upton Sinclair
1927 · Very good
€75
Walsh, Michael
1808 · Very good
€180
August Johann Rösel von Rosenhof
1771 · Fine · NL
€300
Three Initiates
1928 · Good
€20
Augustus J. C. Hare, Julius Charles Hare
1838 · Very good
€155
Margery Williams Bianco
1935 · Good
€20
Abraham Kuyper
1897 · Fair · NL
€30