“It is always observable that silence propagates itself, and that the longer talk has been suspended, the more difficult it is to find any thing to say.”
The Adventurer, # 84 (August 25, 1753) http://www.gutenberg.org/etext/12050
Variant: Silence propagates itself, and the longer talk has been suspended, the more difficult it is to find anything to say.
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Samuel Johnson 362
English writer 1709–1784Related quotes
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As quoted in A Dictionary of Thoughts: Being a Cyclopedia of Laconic Quotations from the Best Authors of the World, both Ancient and Modern (1908) by Tyron Edwards, p. 525
Context: It is better wither to be silent, or to say things of more value than silence. Sooner throw a pearl at hazard than an idle or useless word; and do not say a little in many words, but a great deal in a few.

On the Educational Value of the Medical Society (1903), p. 333

2010s, 2016, July, (21 July 2016)