This from Kabir (c. 1440-1518), translated from the Hindi by Arvind Krishna Mehrotra, in the New York Review of Books, April 7, 2011
Except ttat It Robs You of Who You Are
Except that it robs you of who you are,
What can you say about speech?
Inconceivable to live without
And impossible to live with,
Speech diminishes you.
Speak with a wise man, there'll be
Much to learn; speak with a fool,
All you get is prattle.
Strike a half-empty pot, and it'll make
A loud sound; strike one that is full,
Says Kabir, and hear the silence.