Yup, put up with all kinds of crap and be ok with it

Very basically the idea the idea of stoicism is that for best results in life accept conditions as they are and not buy into internal emotional responses. A Buddhist response would be to observe but not engage. The are a few other teneOne problem that arises with stoicism is that in its classical context it suggests that it is not possible to change events, determinism, but you can change yourself. This, however seems to conflict with the idea of determinism. The most practical application is to accept what you cannot change. Its summed up by the good old Australian saying "She'll be alright, mate. Have a beer"

Yes. Seneca is fun to read.

What about Stocism? It was one of the four major schools of antiquity--along with Platonism, Aristotelianism, and Epicurianism. The book of Acts records how Paul met and debated them (and other philosophers) at Mars Hill.

I'd start with Heraclitus.

Check out Massimo Pigliucci [en.m.wikipedia.org]