Love is a smoke made with the fume of sighs, Being purged, a fire sparkling in lovers’ eyes, Being vexed, a sea nourished with lovers’ tears. What is it else? A madness most discreet, A choking gall and a preserving sweet. - William Shakespeare
Be discreet in all things, and so render it unnecessary to be mysterious about any. - Arthur Wellesley
Satire's my weapon, but I'm too discreet To run amuck, and tilt at all I meet. - Alexander Pope
MAGIC, n. An art of converting superstition into coin. There are other arts serving the same high purpose, but the discreet lexicographer does not name them. - Ambrose Bierce