Thể loại sách nói: Ancient Texts
On the Ends of Good and Evil
Marcus Tullius Cicero
Critón o el deber
Plato (Πλάτων)
Brihadaranyaka Upanishad
Unknown
Aitreya-Aranyaka Upanishad
Unknown
Epistulae Morales Selectae
Lucius Annaeus Seneca
Kaushitaki Upanishad
Unknown
Ocean of Theosophy
William Q. Judge
Taittriyaka Upanishad
Unknown
Mundaka Upanishad
Unknown
Katha Upanishad
Unknown
Tusculan Disputations
Marcus Tullius Cicero
Lives and Opinions of Eminent Philosophers, Book VI
Diogenes Laertius