[naremu]

I suppose if you're a cold hard logic type only just dipping your toes into it, the Stoicism of old might be more your speed, as they considered logic and reason their hammer and nails, yet still retain a certain universal appreciation that I find vaguely similar to Taoism from China (along with a concept that change is the only constant)

Roman Emperor Marcus Aurelius has quite an interesting journal that also illustrates some of the thoughts and theories of the time (unable to confirm or deny it, he merely repeatedly brings up the possibility of atomism.)

Atomism also apparently makes an appearance in some Indian philosophical texts, though I don't know them off hand.

Philosophy was originally married to the "natural sciences", and so you'll find many scientific concepts originating in mystical thinking if you look past whatever simple version that suburban cavepeople of the area have decided is king.