Quotations about   assumption

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Ability hits the mark where presumption overshoots and diffidence falls short.

John Henry Newman (1801-1890) English prelate, Catholic Cardinal, theologian
(Attributed)

Also attributed to Golda Meir.
Added on 10-Jul-17 | Last updated 10-Jul-17
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It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young.

Konrad Lorenz (1903-1989) Austrian zoologist, ethologist, ornithologist
On Aggression, ch. 2 (1966)
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Added on 9-May-17 | Last updated 9-May-17
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At its core, therefore, science is a form of arrogance control.

Carol Tavris (b. 1944) American social psychologist and author
Mistakes Were Made (But Not by Me): Why We Justify Foolish Beliefs, Bad Decisions, and Hurtful Acts (2008) [with Elliot Aronson]
Added on 9-Aug-16 | Last updated 9-Aug-16
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Most human beings have an almost infinite capacity for taking things for granted.

Aldous Huxley (1894-1963) English novelist, essayist and critic
Themes and Variations (1950)
Added on 3-Dec-14 | Last updated 3-Dec-14
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Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won’t come in. If you challenge your own, you won’t be so quick to accept the unchallenged assumptions of others. You’ll be a lot less likely to be caught up in bias or prejudice or be influenced by people who ask you to hand over your brains, your soul, or your money because they have everything all figured out for you.

Alan Alda (b. 1936) American actor [b. Alponso Joseph D'Abruzzo]
Things I Overheard While Talking to Myself, ch. 2 “Lingering at the Door” (2007)
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Originally given at the commencement speech at Connecticut College in May, 1980, where his daughter Eve was graduating.
Added on 13-Dec-12 | Last updated 30-Oct-19
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To avoid the various foolish opinions to which mankind are prone, no superhuman genius is required. A few simple rules will keep you, not from all error, but from silly error. If the matter is one that can be settled by observation, make the observation yourself. Aristotle could have avoided the mistake of thinking that women have fewer teeth than men, by the simple device of asking Mrs. Aristotle to keep her mouth open while he counted. He did not do so because he thought he knew. Thinking that you know when in fact you don’t is a fatal mistake, to which we are all prone. I believe myself that hedgehogs eat black beetles, because I have been told that they do; but if I were writing a book on the habits of hedgehogs, I should not commit myself until I had seen one enjoying this unappetizing diet.

Bertrand Russell (1872-1970) English mathematician and philosopher
“An Outline of Intellectual Rubbish,” Unpopular Essays (1950)
Added on 15-Mar-12 | Last updated 2-Jul-15
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War is the unfolding of miscalculations.

Barbara W. Tuchman (1912-1989) American historian and author
The Guns of August (1962)

In Stilwell and the American Experience in China (1970), she gave this as "History is the unfolding of miscalculations."
Added on 26-Jul-11 | Last updated 23-Jun-15
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The least questioned assumptions are often the most questionable.

Paul Broca (1824-1880) French pathologist, neurosurgeon, anthropologist
“Quelques propositions sur les tumeurs dites cancéreuses” (16 Apr 1849)
Added on 1-Feb-04 | Last updated 4-May-15
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