To serve instruction and research in philosophy through the Ph.D. level.
Collection is mainly in English, but other Western languages are collected.
When possible, English translations of foreign works are obtained, except for books by major philosophers, when both originals and translations are purchased if possible. Any appropriate to emphasis of collection. Plato, Aristotle, Whitehead, Husserl, Spinoza, Aquinas, Descartes, Leibniz, Hobbes, Locke, Berkeley, Hume, Kant, Hegel, Mill, William of Ockham, Schopenhauer, Kierkegaard, Nietzsche, Marx, Heidegger, Russell, Wittgenstein, Rousseau, Bacon, Gassendi, La Mettrie, Holbach, Feuerbach, Bruno.