“Hawkesworth said of Johnson, "You have a memory that would convict any author of plagiarism in any court of literature in the world."”

Source: The City of Dreaming Books

Quoted in Alva Johnston's The Legendary Mizners (1953, Farrar Straus and Young, New York, chapter 4, p 66) and Bartlett's, 1992, p. 631.
Also quoted as If you copy from one author, it's plagiarism. If you copy from two, it's research by Stuart B. McIver in Dreamers, Schemers and Scalawags.
Epigrams

As quoted in The Routledge Dictionary of Quotations : A Dictionary of Quotations (1987) by Robert Andrews, p. 154

Booknotes http://www.booknotes.org/Transcript/index_print.asp?ProgramID=1107 television interview (July 5, 1992)

"The Mutabilities of Literature".
The Sketch Book of Geoffrey Crayon (1819–1820)
Context: Language gradually varies, and with it fade away the writings of authors who have flourished their allotted time; otherwise, the creative powers of genius would overstock the world, and the mind would be completely bewildered in the endless mazes of literature. Formerly there were some restraints on this excessive multiplication. Works had to be transcribed by hand, which was a slow and laborious operation; they were written either on parchment, which was expensive, so that one work was often erased to make way for another; or on papyrus, which was fragile and extremely perishable. Authorship was a limited and unprofitable craft, pursued chiefly by monks in the leisure and solitude of their cloisters. The accumulation of manuscripts was slow and costly, and confined almost entirely to monasteries. To these circumstances it may, in some measure, be owing that we have not been inundated by the intellect of antiquity; that the fountains of thought have not been broken up, and modern genius drowned in the deluge. But the inventions of paper and the press have put an end to all these restraints. They have made everyone a writer, and enabled every mind to pour itself into print, and diffuse itself over the whole intellectual world. The consequences are alarming. The stream of literature has swollen into a torrent — augmented into a river — expanded into a sea.

Source: The Tempest

1910s, Nobel lecture (1910)

1850s, Latter-Day Pamphlets (1850), The New Downing Street (April 15, 1850)

Vanna Bonta Talks About Quantum fiction: Author Interview (2007)