“Is there a greater proof of human weakness than the multiplicity of our words?”
Louis-Claude de Saint-Martin
Sufi mystics say that if what you are about to say is not more beautiful than silence, then abstain from speaking.
Attraction and confidence are nourished by purified speech.
Are you speaking words of love and encouragement?
Do you choose to speak words that unify and create common ground?
Is that a surety in your voice before you speak?
If not these, then better to remain silent.