“Listening to the Logos rather than to me, it is wise to agree that all things are in reality one thing and one thing only”
–Heraclitus (Greek philosopher 500BC)
Plato's Cave: Part 2b
(Updated 18/Dec/2017). Some discussion of the philosophical implications . Because of the large number of formulas the e-book itself does not use free text. Note that the ebook uses flash and cannot be read on a tablet or smart phone. Some browser settings require flash to be turned on. Chrome or Mozilla are recommended. Some problems with Safari and internet explorer.