People who possess wisdom are seldom big talkers.
This phrase is a metaphorical way of saying that people who have little knowledge or understanding about a topic tend to speak or argue more loudly about it. Just like how a shallow brook makes more noise than a deep river, those with limited knowledge may express themselves more vocally to compensate for their lack of understanding.
People who are loud and talk a lot usually have nothing of substance to say. This contrasts with "Still waters run deep." Other versions are "Shallow brooks babble loudest" and "Shallow brooks are noisy."
it is an answer that requires thought... but a brook is babbling (like a babbling brook), which could be thought of a talking and shallow talkers are noisy-- extra noise, superfluous and not often meaningful conversation. so therefore, a shallow brook is noisy is simply saying in another way that those who put thought into things aren't always the ones who are talking.
A noisy distraction
A noisy distraction
Old and noisy.
Noisy or painful breathing, Unusually deep or shallow breathing, or changes in skin color, just to name a few.
Being noisy and disorderly.
Noisy
A boy who is bothersome
loud, noisy, dischord
Strepitoso means noisy, or boistrous
Translation: Loud or noisy