
Source: 1960s, The Gutenberg Galaxy (1962), p. 28
1960s, The Medium is the Message (1967)
Source: 1960s, The Gutenberg Galaxy (1962), p. 28
Source: 1960s, The Gutenberg Galaxy (1962), p. 49
Source: An Essay on The Principle of Population (First Edition 1798, unrevised), Chapter I, paragraph 18, lines 1-2
Flash Crowd, section 9, in Three Trips in Time and Space (1973), edited by Robert Silverberg, p. 74
Source: Mathematical Thought from Ancient to Modern Times (1972), p. 253.
"Teaching and Thinking" in The Montreal Medical Journal (1895).
Source: 1960s, Through the Vanishing Point (1968), p.240
“… when men like us do change, the change is profound.”
Source: If You Deceive