René Descartes
1655 · Fine
€1,820
William Whewell
1848 · Fine
€145
Thomas Babington Macaulay
1870 · Very good
€245
Sir Isaac Newton
1727 · Very good
€475
Jacob Haafner
1851 · Very good · NL
€85
Muhammad ibn Abd al-Malik Ibn Tufayl
1751 · Very good
€315
Edwin Emery Slosson
1935 · Very good
€40
Frederick Soddy
1935 · Fine
€30
Immanuel Kant, Kant
1816 · Very good
€155
René Descartes
1912 · Very good
€85
Kanny Lall Dey
1872 · Very good
€85
George Fownes
1848 · Very good
€200
Albert Einstein
1932 · Very good
€110
Schwegler, Albert
1864 · Fine
€120
Silvanus Phillips Thompson
1935 · Very good
€35
Colin MacLaurin
1753 · Very good
€835
Upton Sinclair
1927 · Very good
€75
Plato
1835 · Fine
€145
Morris Raphael Cohen
1935 · Fine
€35
Euclid
1585 · Very good
€565
Immanuel Kant, Alain Renaut
1807 · Very good
€330
Robert Hall, Calamy, Edmund
1809 · Very good
€205
Nicolas Malebranche
1693 · Very good
€600
Dugald Stewart
1815 · Very good
€95
Watson, Thomas Sir
1846 · Very good
€185
George Campbell
1823 · Very good
€150
John Cowper Powys
1933 · Very good
€50
William Cullen
1801 · Very good
€165
Percy Bysshe Shelley
1824 · Very good
€145
Thomas Bridges, Thomas Tooly
1764 · Very good
€265
Charles Hutton
1812 · Very good
€245
John Ray
1709 · Very good
€280
John Wesley
1796 · Very good
€575
Stephan Körner
1799 · Very good
€280
Erwin Rohde
1913 · Very good
€75
John Joly
1932 · Very good
€75
James Finley Weir Johnston
1855 · Very good
€225
Constantin-François Volney
1796 · Fine
€355
James George Frazer
1935 · Fine
€140
Yogananda Paramahansa
1931 · Fine
€125
Gerrard Hickson
1922 · Very good
€35
Mrs. Inchbald
1792 · Very good
€270
James Syme
1840 · Very good
€145
James Syme
1833 · Fine
€220
Thomson, Thomas
1802 · Very good
€160
Fisher, Edward
1649 · Very good
€965
Lazzaro Spallanzani
1778 · Very good
€545
A. S. Neill
1935 · Very good
€45
Alexander Tweedie, System
1841 · Fine
€160
Edmund Law
1746 · Very good
€565
Caleb Bingham
1806 · Fine
€180
G. Wisse
1908 · Very good · NL
€30
Immanuel Kant
1805 · Very good
€100
Roger Eliot Fry
1931 · Very good
€30
Aristotle
1561 · Very good
€915
John Milner, John
1807 · Very good
€95
Jacques-Bénigne Winslow
1774 · Very good
€425
Ruggle, George
1631 · Very good
€1,630
Earl Derr Biggers, Robert Welles Ritchie
1932 · Fine
€90
Plato
1562 · Fine
€1,785