Plato

• Republic
• Apology
• Theaetetus
• Phaedo
• Meno
• Parmenides

Aristotle

• Nicomachean Ethics
• Metaphysics
• Organon
• Poetics
• Physics
• On the Soul

Immanuel Kant

• Critique of Pure Reason
• Critique of Practical Reason
• Critique of the Power of Judgement
• Groundwork for the Metaphysics of Morals
• What is Enlightenment?

René Descartes

• Meditations on First Philosophy
• Discourse on the Method
• Passions of the Soul

St. Thomas Aquinas

• Summa theologica

Friedrich Nietzsche

• On the Genealogy of Morality
• Thus Spake Zarathustra
• Ecce homo
• Beyond Good and Evil

Martin Heidegger

• Being and Time

Heracleitus

• Fragments

Marcus Aurelius

• Meditations

John Locke

• An Essay Concerning Human Understanding

Bishop George Berkeley

• Treatise Concerning the Principles of Human Knowledge

Gottfried Wilhelm Leibniz

• Monadology
• New Essays

Niccolò Machiavelli

• The Prince

Nigel Warburton

• Little History on Philosophy

Ben Goldacre

• Bad Science

Bryan Magee

• Popper

Nassim Nicholas Taleb

• Fooled by Randomness
• The Black Swan