Read up on the Stoic philosophy for the ancient Greek answer to that question. https://en.wikipedia.org/wiki/Stoicism https://en.wikipedia.org/wiki/Stoicism >

Read up on the Stoic philosophy for the ancient Greek answer to that question. https://en.wikipedia.org/wiki/Stoicism https://en.wikipedia.org/wiki/Stoicism > Eventually three sub-classes of "things indifferent" developed: things to prefer because they assist life according to nature; things to avoid because they hinder it; and things indifferent in the narrower sense.