Hayduke Lives (1990)
“Never, never let action become a substitute for thought.”
“Basis for Negotiations” p. 121 (originally published in New Worlds Science Fiction #114, January 1962)
Short fiction, Who Can Replace a Man? (1965)
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Brian W. Aldiss 116
British science fiction author 1925–2017Related quotes

Source: As quoted in "Poet Laureate: Louise Glück and the Public Face of a Private Artist" https://www.nytimes.com/2003/11/04/opinion/editorial-observer-poet-laureate-louise-gluck-public-face-private-artist.html by Andrew Johnston, The New York Times (November 4, 2003)

“You can never substitute emotion for reason.”
Source: Henry L. Trewhitt (1971) McNamara, p. 119
Context: You can never substitute emotion for reason. I still would allow a place for intuition in this process, but not emotion. They say I am a power gabber. But knowledge is power, and I am giving them knowledge, so they will have more power. Can't they see that?

“We must never forget that it is through our actions, words, and thoughts that we have a choice.”

Source: Striking Thoughts (2000), p. 43

“Each thought, each action in the sunlight of awareness becomes sacred.”
Source: Peace Is Every Step: The Path of Mindfulness in Everyday Life

Source: yt

“Never confuse movement with action.”
As quoted by Marlene Dietrich, who added "In those five words he gave me a whole philosophy." Pt. 1, Ch. 1
Papa Hemingway (1966)
Variant: Never mistake motion for action.