To quote, or not to quote (Please retweet!)

“Apollodorus says, ‘If any one were to take away from the books of Chrysippus all the passages which he quotes from other authors, his paper would be left empty.'”
Robert Brook

Sorry, couldn’t resist this, but that was me quoting Robert Brook, quoting Wikipedia, quoting Diogenes Laërtius, quoting Apollodorus on Chrysippus’ quoting too much!