John Locke
1759 · Fair
€130
Immanuel Kant
1823 · Fair
€55
Arthur Stanley Eddington
1924 · Good
€35
Grant Allen
1910 · Good
€40
Thomas Middleton
1580 · Fine
€1,055
Ernest Albee
1906 · Good
€20
Robert Thomas
1819 · Very good
€180
Seneca the Younger
1744 · Fair
€130
Richard L. Watson Jr.
1801 · Good
€250
Olof Hammarsten
1902 · Good
€25
A. S. Neill
1933 · Good
€90
James Fergusson
1892 · Good
€45
Xenophon
1554 · Good
€645
Lydia Maria Child
1872 · Fair
€25
Arthur Schopenhauer
1868 · Good
€40
Steven Blankaart
1726 · Good · NL
€370
B. S. Everitt
1925 · Very good
€105
Auguste Comte
1930 · Good
€30
Louis Armand de Lom d'Arce baron de Lahontan
1709 · Fair
€190
Richard C. Cabot
1908 · Good
€40
John Flaxman
1829 · Very good
€130
Friedrich Fröbel
1913 · Good
€20
Garrett Putman Serviss
1909 · Good
€45
William Whewell
1848 · Fine
€145
Denison Olmsted
1868 · Good
€60
Davison, Alvin
1935 · Good
€55
Thomson, Thomas
1802 · Very good
€160
Howard A. Kelly
1899 · Very good
€45
Edward Livingston Youmans
1896 · Good
€50
John Timbs
1871 · Very good
€70
W. H. R. Rivers
1927 · Good
€30
Algernon Charles Swinburne
1930 · Very good
€45
Plotinus
1916 · Good
€75
Horatio Alger, Jr.
1879 · Fair
€35
Ruggle, George
1631 · Very good
€1,630
Frederic Austin Ogg
1935 · Fine
€85
Abraham Kuyper
1914 · Good · NL
€20
P. L. Macdougall
1873 · Fair
€50
Adriaan Spinniker
1806 · Good · NL
€95
Dionysius Lardner
1875 · Very good
€50
Joseph Butler, B. F. Tefft
1789 · Very good
€630
Thomas Pennant
1769 · Very good
€545
Sir Humphry Davy
1827 · Good
€85
Pietro Blaserna
1922 · Good
€20
Peter Kropotkin
1886 · Very good
€60
Preston, Thomas
1914 · Good
€30
Jacques Rohault
1674 · Fair
€520
Yogananda Paramahansa
1931 · Fine
€125
James Orchard Halliwell-Phillipps
1873 · Very good
€90
Watson, Thomas Sir
1846 · Very good
€185
Richard Wagner
1821 · Good
€325
John Ruskin
1900 · Very good
€25
Seneca the Younger
1531 · Fair
€1,440
Samuel Philip Sadtler
1897 · Fair
€75
Frederick Charles Copleston
1910 · Very good
€40
Ludwig Wittgenstein, Isidoro Reguera Pérez
1935 · Good
€45
Jacques Loeb
1918 · Good
€35
Frederick Treves
1893 · Good
€120
Wouter Hendrik Van Seters
1935 · Good · NL
€50
John Ruskin
1857 · Fine
€100