“A good plan will therefore include alternative actions, the choice between them being left open until the passage of time indicates which is feasible and which is not.”
Source: Our Modern Idol: Mathematical Science (1984), p. 42.
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Carl Eckart 9
American physicist 1902–1973Related quotes
Source: Social behavior: Its Elementary Forms, 1961, p. 43 (in 1974 edition)

Source: 1970s, On purposeful systems., 1972, p. 145, as cited in: Galjaard (2009, p. 89): About the information-concept of Ackoff.

“The choice before human beings, is not, as a rule, between good and evil but between two evils.”
"No, Not One," The Adelphi (October 1941), p. 7 http://books.google.com/books?id=hdwYAQAAIAAJ&q=%22The+choice+before+human+beings%22&pg=PA7#v=onepage- 8 http://books.google.com/books?id=hdwYAQAAIAAJ&q=%22is+not+as+a+rule+between+good+and+evil+but+between+two+evils%22&pg=PA8#v=onepage
Context: The choice before human beings, is not, as a rule, between good and evil but between two evils. You can let the Nazis rule the world: that is evil; or you can overthrow them by war, which is also evil. There is no other choice before you, and whichever you choose you will not come out with clean hands.
Source: Communication: The Social Matrix of Psychiatry, 1951, p. 6 as cited in: Stewart L. Tubbs, Robert M. Carter (1978) Shared Experiences in Human Communication. p. 1

Credo (1965)
Context: I believe that none can "save" his fellow man by making a choice for him. To help him, he can indicate the possible alternatives, with sincerity and love, without being sentimental and without illusion. The knowledge and awareness of the freeing alternatives can reawaken in an individual all his hidden energies and put him on the path to choosing respect for "life" instead of for "death."

Cited in: Eggertsson (1990; 22)
"Information and Efficiency: Another Viewpoint." (1969)

“You never know how strong you can be until being strong is the only choice you have left.”
Source: The Rose That Grew from Concrete
Source: Becoming Hitler: The Making of a Nazi (2017), p. 67