How Children Learn (1967).
“We must trust to nothing but facts”
Source: Elements of Chemistry (1790), pp. xviii
Context: We must trust to nothing but facts: These are presented to us by Nature, and cannot deceive. We ought, in every instance, to submit our reasoning to the test of experiment, and never to search for truth but by the natural road of experiment and observation.
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Antoine Lavoisier 7
French chemist 1743–1794Related quotes

Bombay, Second Public Talk (25 February 1962)
1960s
Context: The fact is there is nothing that you can trust; and that is a terrible fact, whether you like it or not. Psychologically, there is nothing in the world that you can put your faith, your trust, or your belief in. Neither your gods, nor your science can save you, can bring you psychological certainty; and you have to accept that you can trust in absolutely nothing. That is a scientific fact, as well as a psychological fact. Because, your leaders — religious and political — and your books — sacred and profane — have all failed, and you are still confused, in misery, in conflict. So, that is an absolute, undeniable fact.

1840s, Essays: First Series (1841), History
The Conspiracy Against the Human Race: A Contrivance of Horror (2010)

"My Six Conversions, § II : When the World Turned Back" in The Wells and the Shallows (1935)
Context: The Church never said that wrongs could not or should not be righted; or that commonwealths could not or should not be made happier; or that it was not worth while to help them in secular and material things; or that it is not a good thing if manners become milder, or comforts more common, or cruelties more rare. But she did say that we must not count on the certainty even of comforts becoming more common or cruelties more rare; as if this were an inevitable social trend towards a sinless humanity; instead of being as it was a mood of man, and perhaps a better mood, possibly to be followed by a worse one. We must not hate humanity, or despise humanity, or refuse to help humanity; but we must not trust humanity; in the sense of trusting a trend in human nature which cannot turn back to bad things.

“In God we trust. All others must bring data.”
Earliest attestation 1978; see Statistics.
Frequently attributed to Deming; it appears in The Deming Management Method, by Mary Walton, 1986, p. 96 https://books.google.com/books?id=4tPlxq76ssYC&pg=PA96&dq=%22in%20god%20we%20trust.%20all%20others%20must%20use%20data.%22, without any attribution, to Deming or anyone else:
Source: “In God we trust. All others must bring data” http://www.barrypopik.com/index.php/new_york_city/entry/in_god_we_trust_all_others_must_bring_data, Barry Popik, The Big Apple, October 19, 2015
Source: Misattributed, Chapter 20: Doing It with Data: "In God we trust. All others must bring data." If there is a credo for statisticians, it is that.

Willie's Question
The Disciple and Other Poems (1867)

Opening address, Pacific Islands Political Studies Association (PIPSA), 24 November 2005.