Silence at the proper season ...

Silence at the proper season is wisdom, and better than any speech.
Silence at the proper season is wisdom, and better than any speech.

More phrases

If one does not know to which port one is sailing, no wind is favorable.
What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.
We are masters of the unsaid words, but slaves of those we let slip out.
I have always found that mercy bears richer fruits than strict justice.
A lie gets halfway around the world before the truth has a chance to get its pants on.

Quotes from the same author

Know how to listen, and you will profit even from those who talk badly.
To make no mistakes is not in the power of man; but from their errors and mistakes the wise and good learn wisdom for the future.
I don't need a friend who changes when I change and who nods when I nod; my shadow does that much better.
What we achieve inwardly will change outer reality.
“The Spartans do not ask how many are the enemy but where are they.”