Parallel
Proverbs 12:23
Rahlfs Septuagint (1935) · Berean Standard Bible
ἀνὴρ συνετὸς θρόνος αἰσθήσεως καρδία δὲ ἀφρόνων συναντήσεται ἀραῖς
A shrewd man keeps his knowledge to himself, but a foolish heart proclaims its folly.