The Varieties of Religious Experience: A Study in Human Nature

Aristotle's Children: How Christian, Muslims and Jews Rediscovered Ancient Wisdom and Illuminated the Dark Ages

Selections from Parerga and Paralipomena: Volume 2

A Theologico-Political Treatise/A Political Treatise

Ethics (Complete)

The World as Will and Idea: Volume 3

The Critique of Pure Reason, Volume 2

Studies in Pessimism

Reason and Rationality

The Two Fundamental Problems of Ethics: Essay on the Freedom of the Will, the Basis of Morality

Pragmatism

On Human Nature

The Will to Believe

The Art of Controversy

The Wisdom of Life, Counsels and Maxims

Viveka Vākya: The Divine Wisdom of Swami Vivekananda

The Basis Of Morality (Unabridged): optional