Maurice Maeterlinck said this quote

And it is because we all of us know of this sombre power and its perilous manifestations, that we stand in so deep a dread of silence. We can bear, when need must be, the silence of ourselves, that of isolation: but the silence of many - silence multiplied - and above all the silence of a crowd - these are supernatural burdens, whose inexplicable weight brings dread to the mightiest soul.