Autoren
- Adam Smith
- Adi Granth
- Adi Shankara
- Ägyptisches Totenbuch
- al-Fārābī
- Al-Ghazali
- Alexander Berkman
- Alexis de Tocqueville
- Alfred Adler
- Alfred Binet
- Allan Kardec
- Anaxagoras
- Ángel Ganivet
- Anselm Turmeda
- Anselm von Canterbury
- Aristoteles
- Arthur Schopenhauer
- Athanasius von Alexandria
- Auguste Comte
- Augustinus von Hippo
- Ausiàs March
- Averroes
- Avesta
- Avicenna
- Baltasar Gracián
- Bardo Thödol
- Bartolomé de las Casas
- Baruch Spinoza
- Basilius von Caesarea
- Benito Feijoo
- Bernat Metge
- Bhagavadgita
- Bibel
- Boethius
- Bonaventura
- Charles Darwin
- Charles Peirce
- Christine de Pizan
- Cicero
- Condorcet
- David Hume
- David Ricardo
- Demokrit
- Denis Diderot
- Descartes
- Dhammapada
- Diogenes Laertius
- Duns Scotus
- Edmund Burke
- Edmund Husserl
- Eduard Bernstein
- Edward B. Titchener
- Émile Durkheim
- Emma Goldman
- Empedokles
- Epiktet
- Epikur
- Erasmus von Rotterdam
- F. H. Bradley
- Flora Tristan
- Francesc Eiximenis
- Francis Bacon
- Francisco de Vitoria
- Franz Brentano
- Friedrich Engels
- G. Stanley Hall
- Georg Simmel
- George Berkeley
- Georges Sorel
- Giambattista Vico
- Gilgamesch
- Giordano Bruno
- Giovanni Gentile
- Gottfried Wilhelm Leibniz
- Gotthold Ephraim Lessing
- Gottlob Frege
- Gregor I.
- Gregor von Nyssa
- Gustav Theodor Fechner
- Hadith
- Han Fei
- Harriet Martineau
- Harriet Taylor
- Havelock Ellis
- Hegel
- Henri Bergson
- Henry David Thoreau
- Heraklit
- Herbert Spencer
- Hesiod
- Hugo Grotius
- Huineng
- Huldrych Zwingli
- I Ging
- Iamblichos
- Ibn Chaldun
- Ibn Tufail
- Ignatius von Antiochien
- Immanuel Kant
- Innozenz III.
- Irenäus von Lyon
- Iwan Pawlow
- Jaime Balmes
- Jaina-Sutras
- Jakob Böhme
- James Mark Baldwin
- Jean-Jacques Rousseau
- Jean-Martin Charcot
- Jeremy Bentham
- Johann Gottfried Herder
- Johann Gottlieb Fichte
- Johannes Calvin
- Johannes Chrysostomos
- Johannes vom Kreuz
- John B. Watson
- John Dewey
- John Locke
- John Stuart Mill
- Joseph de Maistre
- Josiah Royce
- Juan Donoso Cortés
- Juan Luis Vives
- Judith Drake
- Justin der Märtyrer
- Karl Marx
- Kautilya
- Klemens I.
- Kojiki
- Konfuzius
- Koran
- Kurt Koffka
- Laozi
- Leo I.
- Leo Trotzki
- Leo XIII.
- Lew Tolstoi
- Lew Wygotski
- Lieder-Edda
- Liezi
- Lotos-Sutra
- Lucius Annaeus Seneca
- Ludwig Feuerbach
- Lukrez
- Mabinogion
- Machiavelli
- Mahabharata
- Mahatma Gandhi
- Mahayana-Sutras
- Maimonides
- Manusmriti
- Marcus Aurelius
- Martin Luther
- Mary Astell
- Mary Wollstonecraft
- Max Stirner
- Max Weber
- Max Wertheimer
- Meister Eckhart
- Mencius
- Michail Bakunin
- Michel de Montaigne
- Miguel de Unamuno
- Montesquieu
- Moses Mendelssohn
- Nicolas Malebranche
- Nietzsche
- Nihonshoki
- Nikolaus von Kues
- Olympe de Gouges
- Omar Chayyām
- Origenes
- Otto Rank
- Parmenides
- Pascal
- Patanjali
- Peter Abälard
- Philipp Melanchthon
- Philon von Alexandria
- Pi i Margall
- Pierre Bayle
- Pistis Sophia
- Pius V.
- Pjotr Kropotkin
- Platon
- Plotin
- Plutarch
- Polykarp
- Popol Vuh
- Porphyrios
- Proklos
- Proudhon
- Rabindranath Tagore
- Ralph Waldo Emerson
- Ramayana
- Ramon Llull
- Rigveda
- Rosa Luxemburg
- Rumi
- Sándor Ferenczi
- Schijing
- Sextus Empiricus
- Shaftesbury
- Sigmund Freud
- Simón Bolívar
- Snorri Sturluson
- Sophokles
- Sor Juana Inés de la Cruz
- Søren Kierkegaard
- Sun Tzu
- Swami Vivekananda
- Tanach
- Teresa von Ávila
- Tertullian
- Théodule-Armand Ribot
- Thomas Hobbes
- Thomas Morus
- Thomas Paine
- Thomas Reid
- Thomas Robert Malthus
- Thomas von Aquin
- Thomas von Kempen
- Upanishaden
- Voltaire
- Voltairine de Cleyre
- Wilhelm Dilthey
- Wilhelm von Ockham
- Wilhelm Wundt
- William Godwin
- William James
- Wladimir Lenin
- Xenophon
- Zhuangzi