Eudemian Ethics By: Aristotle

Lives and Opinions of Eminent Philosophers, Book VI By: Diogenes Laertius

On the Ends of Good and Evil By: Marcus Tullius Cicero

On Duties By: Marcus Tullius Cicero

Tusculan Disputations By: Marcus Tullius Cicero

Katha Upanishad By: Unknown

Mundaka Upanishad By: Unknown

Taittriyaka Upanishad By: Unknown

Kaushitaki Upanishad By: Unknown

Aitreya-Aranyaka Upanishad By: Unknown

Brihadaranyaka Upanishad By: Unknown

Morals (Moralia), Book 1 By: Lucius Mestrius Plutarchus

Ocean of Theosophy By: William Q. Judge

Economics By: Aristotle

Chandogya Upanishad By: Unknown

Prasna Upanishad By: Unknown

Isha Upanishad By: Unknown

Kena Upanishad By: Unknown

Svetasvatara Upanishad By: Unknown

Maitrayana Upanishad By: Unknown

Opuscula By: Aristotle

Apocrypha By: Lucius Apuleius

Enneads By: Plotinus

Moral Letters, Vol. II By: Lucius Annaeus Seneca

Musings of a Chinese Mystic: Selections from the Philosophy of Chuang Tzu By: Lionel Giles

Lives of the Ancient Philosophers By: François Fénelon

Sayings of Lao Tzu By: Lao Tzu

On the Parts of Animals By: Aristotle

Elements of Theology By: Proclus

Characters Of Theophrastus By: Theophrastus

Six Books of Proclus, the Platonic Successor, on the Theology of Plato By: Proclus

Consolation of Philosophy (Version 2) By: Anicius Manlius Severinus Boethius