Carolus_Linnaeus
Comiwnyddiaeth
Sosialaeth
Isaac_Newton
Cyfalafiaeth
Rhamantiaeth
Karl_Marx
Anarchiaeth
Thomas_Jefferson
Martin_Luther
Yr_Oleuedigaeth
Johann_Wolfgang_von_Goethe
Immanuel_Kant
René_Descartes
Sigmund_Freud
Baróc
Benjamin_Franklin
Voltaire
Gottfried_Wilhelm_Leibniz
Friedrich_Nietzsche
Moderniaeth
John_Locke
Georg_Hegel
Jean-Jacques_Rousseau
Alfred_Russel_Wallace
Adam_Smith
Oscar_Wilde
Gwleidyddiaeth_yr_adain_dde
Lewis_Carroll
Thomas_Hobbes
Johannes_Kepler
Blaise_Pascal
John_Stuart_Mill
Ymwybyddiaeth
Friedrich_Schiller
Christiaan_Huygens
Søren_Kierkegaard
Baruch_Spinoza
Denis_Diderot
Friedrich_Engels
James_Clerk_Maxwell
Ludwig_Wittgenstein
Samuel_Taylor_Coleridge
Max_Weber
Arthur_Balfour
Thomas_Paine
Montesquieu
Ralph_Waldo_Emerson
Michel_de_Montaigne
Hugo_Grotius
Antoine_Lavoisier
Edmund_Burke
Mary_Wollstonecraft
Francis_Bacon
Robert_Boyle
Das_Kapital
André-Marie_Ampère
Charles_Babbage
Henri_Bergson
Henry_David_Thoreau
David_Hume
Auguste_Comte
Thomas_Malthus
Friedrich_Schelling
Jeremy_Bentham
Georg_Cantor
Mikhail_Bakunin
Marquis_de_Sade
Richard_Price
Alexis_de_Tocqueville
Johann_Gottlieb_Fichte
David_Ricardo
Thomas_Carlyle
Pyotr_Kropotkin
Gotthold_Ephraim_Lessing
Ernest_Renan
Novalis
José_Rizal
Enwoliaeth
Athroniaeth_Farcsaidd
Candide
Trosedd_a_Chosb_(nofel)
Francis_Hutcheson
Thomas_Henry_Huxley
Benjamin_Constant
Bernard_Bolzano
Germaine_de_Staël
Giambattista_Vico
Jane_Addams
Thomas_Browne
Wilhelm_Wundt
Maria_Gaetana_Agnesi
François_Quesnay
Sully_Prudhomme
Max_Stirner
François_de_La_Rochefoucauld
Felly_Llefarodd_Zarathustra
Samuel_Butler_(nofelydd)
Isaac_Watts
Emerich_de_Vattel
Dyneiddiaeth_y_Dadeni
Clasuriaeth
John_Toland
On_Liberty
Asa_Gray
Edward_Carpenter
George_Berkeley
J._M._E._McTaggart
Johann_Gottfried_von_Herder
Jean_le_Rond_d'Alembert
Friedrich_Schlegel
Wilhelm_von_Humboldt
Hawliau_naturiol
Richard_Bentley
Charles_Sanders_Peirce
Ludwig_Tieck
René_Guénon
Pierre_Bayle
Hugh_Blair
Jonathan_Edwards_(awdur)
August_Wilhelm_Schlegel
Quis_custodiet_ipsos_custodes?
Wilhelm_Dilthey
Emil_du_Bois-Reymond
Georges_Sorel
Anthony_Ashley-Cooper,_3ydd_Iarll_Shaftesbury
Joseph_Butler
Dialogo_sopra_i_due_massimi_sistemi_del_mondo
George_Herbert_Mead
Harriet_Martineau
Oes_yr_Echelin
William_Paley
Francesco_Algarotti
Mary_Everest_Boole
Algernon_Sidney
Cesariaeth
George_Campbell