“Never say anything that doesn't improve on silence.”
“Don’t say anything unless you can improve on the silence.”
“Aaron would never make up anything like that.”"That's because Aaron doesn't say anything that requires words of more than one syllable.”
“Speak only if it improves upon the silence.”
“One must not be afraid of a little silence. Some find silence awkward or oppressive. But a relaxed approach to dialogue will include the welcoming of some silence. It is often a devastating question to ask oneself, but it is sometimes important to ask it - 'In saying what I have in mind will I really improve on the silence?”
“Don't talk unless you can improve the silence.”