Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 589.
“Motion is a great tranquilizer.”
Source: World Made By Hand (2008), Chapter 6, p. 34
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James Howard Kunstler 45
American writer 1948Related quotes

“Should you desire the great tranquility prepare to sweat white beads.”
As quoted in Zen and the Art of Poker: Timeless Secrets to Transform Your Game by Larry W. Phillips

The First Part, Chapter 6, p. 29 (See also: Rene Girard)
Leviathan (1651)

“He has great tranquility of heart who cares neither for the praises nor the fault-finding of men.”
Magnam habet cordis tranquillitatem, qui nec laudes curat, nec vituperia. — Thomas à Kempis, Imitation of Christ (ca. 1418), book II, ch. VI, paragraph 2.
Misattributed

which the Scriptures call "false peace"
Source: Peace of Soul (1949), Ch. 6, p. 112

“It takes a motion to notion
and it takes a notion to motion.”
"Tomorrow is Never" (1972), p. 253
Sun Ra : The Immeasurable Equation (2005)

Boccioni's quote on motion; as quoted in Futurism, ed. Didier Ottinger; Centre Pompidou / 5 Continents Editions, Milan, 2008, p. 328.
1914 - 1916, Pittura e scultura futuriste' Milan, 1914