Whenever you entrust your heart to a thought,
something will be taken from you inwardly.
Whatever you think and acquire, the thief will
enter from that side where you feel safe.
So busy yourself with that which is better, so
that something less may be taken from you.

-- Mathnawi II:1505-1507
Translation by William Chittick
"The Sufi Path of Love"
SUNY Press, Albany 1983
"SACRED COWS MAKE THE BEST HAMBURGER."