I'm reading An Unquiet Mind: A Memoir of Moods and Madness. I don't understand this part:
I couldn't help thinking, with more than a trace of bitterness, that God seldom opens one door that he doesn't close another.
(should I put 'its' or 'the' here?)Preceding sentence is I couldn't help thinking with more than a trace of bitterness, and (same question) following sentence is However, I couldn't afford not to..
I've seen this only in an affirmitive form(when god closes~~ he opens~~), and while I think I might know what it means.. oh no.. I don't know what it's saying. Some double negative thing..term for this.. Could you explain this with an emphasis on the usage of 'that'?