"Nones don’t get hung up on whether a religion is “true” or not, and instead subscribe to William James’s maxim that “truth is what works.” If a certain spiritual practice makes us better people — more loving, less angry — then it is necessarily good, and by extension 'true.'"
Americans: Undecided About God by Eric Weiner
I'd like to point out (mostly because I'm notorious for typos) that "nones" is not supposed to be "nuns." Read the article...it'll make sense.