塞翁失马， 安知非福

塞翁失马， 安知非福 [sài wēng shī mǎ ān zhī fēi fú]

1. ■ When the old man on the frontier lost his mare, who could have guessed it was a blessing in disguise -- a loss may turn out to be a gain.; A loss sometimes spells a gain.; Every cloud has a [its] silver lining.; Misfortune may (prove to) be a blessing in disguise.; Nothing so bad, as not to be good for sth.