• 23 Books

• 19 Philosophers
• 4 Philosophy, Ancient
• 3 Philosophers, Ancient
• 1 Aristotle
• 1 Augustine, of Hippo, Saint, 354-430
• 1 Berkeley, George, 1685-1753
• 1 Christian saints
• 1 Communism
• 1 Communists
• 1 Derrida, Jacques
• 1 Descartes, René, 1596-1650
• 1 Existentialism
• 1 Foucault, Michel, 1926-1984
• 1 Hegel, Georg Wilhelm Friedrich, 1770-1831
• 1 History
• 1 Hume, David, 1711-1776
• 1 Idealism, German
• 1 Kant, Immanuel, 1724-1804
• 1 Kierkegaard, Søren, 1813-1855
• 1 Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716
• 1 Locke, John, 1632-1704
• 1 Machiavelli, Niccolò, 1469-1527
• 1 Marx, Karl, 1818-1883
• 1 Nietzsche, Friedrich Wilhelm, 1844-1900
• 1 Philosophy, French

• 23 Spanish

• 4 France
• 4 Germany
• 2 Italy
• 1 Algeria
• 1 Austria
• 1 Denmark
• 1 England
• 1 Great Britain
• 1 Greece
• 1 Hippo (Extinct city)
• 1 Netherlands
• 1 Scotland

Limit year range