I inherited a gold cross from my Catholic (Polish) grandmother over 40 years ago, and the cross is already over 100 years old. The following phrase "num hoc veritas vincit " is engraved on the back. I know that veritas vincit means "truth conquers", and that hoc is "this". I also gather that num can introduce an indirect question. So is the phrase asking whether it is true that truth conquers? Whoever had it engraved may not have been a latin scholar! I have been unable to find a reference to this as a "known" latin phrase. I'm intrigued by this, and I'd appreciate help with a translation. Thanks very much.