Being Quiet makes us nervous. Many think that if they do not talk, people will not recognize their true value. Try being quiet in a meeting, and you will see others "purring" themselves into the quiet, filling the gaps. Alternatively, it will become embarrassing, or the meeting will end.
Being quiet is a luxury. It is an acquired taste. It is something you grow into. Quiet provides the opportunity to listen, the time to think, and the stage to say words of value.
Quiet is the gap between your sentences of value.