- The First Philosophers: The Presocratics and Sophists
- The Golden Verses of Pythagoras and Other Pythagorean Fragments
- A Collection of Writings Related to Occult, Esoteric, Rosicrucian and Hermetic Literature, Including Freemasonry, the Kabbalah, the Tarot, Alchemy and Theosophy Volume 1
- The Golden Verses Of Pythagoras And Other Pythagorean Fragments
- The Influence of Pythagoras on Freemasonry, The Golden Verses of Pythagoras and The Life and Philosophy of Pythagoras
- Georg Wilhelm Friedrich Hegel
- Ludwig Wittgenstein
- William E. Cain
- Simone Weil
- Gottfried Wilhelm Leibniz
- George Berkeley
- Willard Van Orman Quine
- Henri Bergson
- Edmund Husserl
- Heraclitus
- Anaxagoras
- Arthur Stanley Eddington
- J.L. Austin
- Thales
- Parmenides
- Ernst Mach
- Empedocles
- Anaximander
- Anaximenes
- Protagoras