What you say is true. Know though that over 90% of communication is non-verbal. Our mouth is a filter or censor for our thoughts (For those who have a filter). Otherwise we have an epidemic of Diarrhea of the mouth. That becomes repulsive and disgusting and inhibits effective intellectual intercourse. Of course silence is a form of speaking as well, unless that silence is silenced and worthwhile stimuli comes erupting. Thanks for your Steemit eruption of thought. May it provoke a volcano of response.