Never try to teach a pig to sing. It wastes your time and annoys the pig.
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submitted by SylphofLight, August 24, 2014
The Notebooks of Lazarus Long, the origin of this quote, is a selection of aphorisms from one of Robert A. Heinlein's main characters (Lazarus Long). These were originally published as two "intermissions" in the 1973 novel Time Enough for Love.
This quote was added May 29, 2009.