“Be quiet!” or “Quiet on the Set.” or “Quiet is a way of being.”
To be quiet is to be silent; to not speak or make a sound; to move without making a sound or even to be still; or to be so shy that one is perceived to have a quiet personality.
Quiet can be found in the stillness of the morning just before sunrise. The noiseless moments before a storm unleashes are a pay-attention kind of quiet. When children are at play and you no longer hear them; that quiet prompts “what are they up to? It’s too quiet.” When typical workplace sounds are missing, the quiet prompts investigation.