1850s, Speech at Peoria, Illinois (1854)
Authority and the Individual (1949), p. 59
1940s
Source: The Adventures of Huckleberry Finn
Reported as an inscription quoting Lincoln in an English college in The Baptist Teacher for Sunday-school Workers : Vol. 36 (August 1905), p. 483. The portion beginning with "stand with anybody..." is from the 16 October 1854 Peoria speech..
Posthumous attributions
The last sentence is from the 16 October 1854 Peoria speech, slightly paraphrased. No known contemporary source for the rest. It first appears, attributed to Lincoln, in US religious/inspirational journals in 1907-8, such as p123, Friends Intelligencer: a religious and family journal, Volume 65, Issue 8 (1908)
Misattributed
On Ezra Pound, as quoted in The New Republic (11 November 1936)
Source: The Stress of Her Regard (1989), Chapter 3 (p. 51)
"Hazards of Prophecy: The Failure of Imagination" in Profiles of the Future (1962)
Perhaps the adjective "elderly" requires definition. In physics, mathematics, and astronautics it means over thirty; in the other disciplines, senile decay is sometimes postponed to the forties. There are, of course, glorious exceptions; but as every researcher just out of college knows, scientists of over fifty are good for nothing but board meetings, and should at all costs be kept out of the laboratory!
"Hazards of Prophecy: The Failure of Imagination" in Profiles of the Future (1962; as revised in 1973)
On Clarke's Laws
