I've become skeptical, at least at first, of pithy / catchy phrases. Many seem to be well known because they're memorable, but some people assume they're well

I've become skeptical, at least at first, of pithy / catchy phrases. Many seem to be well known because they're memorable, but some people assume they're well know because they contain wisdom. E.g., "It's always darkest before dawn." or (the often misconstrued) "The exception proves the rule."