“The electric light is pure information. It is a medium without a message.”
Source: 1960s, Understanding Media (1964), p. 8
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Marshall McLuhan 416
Canadian educator, philosopher, and scholar-- a professor … 1911–1980Related quotes
Source: Information, The New Language of Science (2003), Chapter 4, Counting Bits, The scientific measure of information, p. 28

Letter to Edward T. Hall, 1971, Letters of Marshall McLuhan, p. 397
1970s

Source: Less Than Nothing (2012), Chapter One (The Drink Before), Vacillating The Semblances

Observation of Bose Institute.
Acharya Jagadish Chandra Bose in Vijayaprasara

Lecture at Kings College (1862) as quoted by F. V. Jones, "The Man Who Paved the Way for Wireless," New Scientist (Nov 1, 1979) p. 348 & Andrey Vyshedskiy, On The Origin Of The Human Mind 2nd edition

“Callas? She was pure electricity.”
As quoted in Callas: The Art and the Life (1974) by John Ardoin

1990s and beyond, "The Agenbite of Outwit" (1998)

“O'er the wires the electric message came,
"He is no better; he is much the same."”
On the Illness of the Prince of Wales (1910)
An 1871 poem on the illness of the Prince of Wales, although there is some doubt that Austin actually wrote this part. That classic compendium "The Stuffed Owl: An Anthology of Bad Verse" (2d ed. 1930; Capricorn paperback 1962) includes a dozen quotations from Austin but attributes this particular couplet (p. 17) to a "university poet unknown." It also provides a metrically more accurate first line, "Across the wires the gloomy message came," plus "not" for "no" in the second line.
On the Illness of the Prince of Wales (1910)
“The principles of information science apply, whatever the medium of transfer.”
Source: Fifty years of information progress (1994), p. 9.