Silence is gloden

In English: Speech is silver, silence is golden. -- Talk may be beneficial, but sometimes acquiescence may be the best option to take.

In French: La parole est d'argent, le silence est d'or. -- Speech is silver, silence is golden.

In Italian: Il silenzio è d'oro. --Silence is golden.--It stresses the fact that sometime is better to be silent. = Speech is silver, silence is golden / Silence catches a mouse.

In Greek: Ta polla logia einai ftwxeia. -- Many words is poverty. Advises against talking too much, avoiding circumlocution.