“To believe that any action based on an ignorance of fact can possibly succeed, is to abandon the use of reason.”
Give Me Liberty (1936)
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Rose Wilder Lane 43
American journalist 1886–1968Related quotes

" The TLS on Plantinga and me https://whyevolutionistrue.wordpress.com/2017/05/03/the-tls-on-plantinga-and-i/" May 3, 2017

As quoted in "Some Szilardisms on War, Fame, Peace", LIFE magazine, Vol. 51, no. 9 (1 September 1961), p. 79
Context: It is not necessary to succeed in order to persevere. As long as there is a margin of hope, however narrow, we have no choice but to base all our actions on that margin. America and Russia have one interest in common which may override all their other interests: to be able to live with the bomb without getting into an all-out war that neither of them wants.

Part 2 “Four Subjective Arguments”, Chapter 5 “The Argument from Interventions (and Miracles, Prayers, and Witnesses)” (pp. 88-89)
Irreligion: A Mathematician Explains Why the Arguments for God Just Don’t Add Up (2008)
Interviewed in the documentary series The Civil War, 1990
Context: Any understanding of this nation has to be based, and I mean really based, on an understanding of the Civil War. I believe that firmly. It defined us. The Revolution did what it did. Our involvement in European wars, beginning with the First World War, did what it did. But the Civil War defined us as what we are and it opened us to being what we became, good and bad things. And it is very necessary, if you are going to understand the American character in the twentieth century, to learn about this enormous catastrophe of the mid-nineteenth century. It was the crossroads of our being, and it was a hell of a crossroads.

1860s, Second State of the Union address (1862)
Context: I do not forget the gravity which should characterize a paper addressed to the Congress of the nation by the Chief Magistrate of the nation, nor do I forget that some of you are my seniors, nor that many of you have more experience than I in the conduct of public affairs. Yet I trust that in view of the great responsibility resting upon me you will perceive no want of respect to yourselves in any undue earnestness I may seem to display. Is it doubted, then, that the plan I propose, if adopted, would shorten the war, and thus lessen its expenditure of money and of blood? Is it doubted that it would restore the national authority and national prosperity and perpetuate both indefinitely? Is it doubted that we here — Congress and Executive can secure its adoption? Will not the good people respond to a united and earnest appeal from us? Can we, can they, by any other means so certainly or so speedily assure these vital objects? We can succeed only by concert. It is not "Can any of us imagine better?" but "Can we all do better?" Object whatsoever is possible, still the question recurs, "Can we do better?"

“Become tolerant and resist any type of ignorance that is based on dogmas.”

“It is hardly possible God will let us succeed while such enormities are practiced.”
Regarding slavery (1862), as quoted in Garfield: A Biography (1978), by Allan Peskin, p. 145
1860s
Context: We do not even inquire whether a black man is a rebel in arms, or not, if he is black, be he friend or foe, he is thought best kept at a distance. It is hardly possible God will let us succeed while such enormities are practiced.

Random Thoughts https://townhall.com/columnists/thomassowell/2004/12/06/random-thoughts-n996213, Townhall, December 2004.
2000s