“The pen is mightier than the sword,” says the well-known proverb. Once put down in writing, a thought, an opinion, cannot be erased, and cannot be taken back. Hence, a wise man does not commit anything to writing that he can regret later; he contemplates and thinks, and maintains poise instead of needless expression of opinion.
A similar parallel is drawn in The Prophet by Kahlil Gibran:
“And then a scholar said, Speak of Talking.
And he answered, saying:
You talk when you cease to be at peace with your thoughts;
And when you can no longer dwell in the solitude of your heart you live in your lips, and sound is a diversion and a pastime.
And in much of your talking, thinking is half murdered.
For thought is a bird of space, that in a cage of words may indeed unfold its wings
But cannot fly.”