Robert A. Heinlein quote about waste from Time Enough for Love - Never attempt to teach a pig to sing; it wastes your time and annoys the pig.
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Never attempt to teach a pig to sing; it wastes your time and annoys the pig.
 Robert A. Heinlein, Time Enough for Love (1973). copy citation

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Author Robert A. Heinlein
Source Time Enough for Love
Topic waste teaching
Date 1973
Language English
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