Some time ago I was going through the book by West "Early Greek Philosophy and the Orient". He says that to understand Heraclitus it is more helpful to read "Brhadaranyaka Upanishad" than the other earlier presocratics. Well I have started on that path by downloading the commentary by Krishnamurti as a pdf and a very well commented French version from
http://www.les-108-upanishads.ch/brihadaranyaka.html.
This is easy to turn into an ebook using for example Sigil.
Was West correct - any opinions, thoughts?