“That's not a lie, it's a terminological inexactitude.”
Defending himself against accusations of lying in 1983. Quoted by Rutledge, Leigh W., "Would I Lie To You?", Plume, 1998, ISBN 0-452-27931-3, p. 81.
This turn of phrase origninated with Winston Churchill in his 1906 election campaign.
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Alexander Haig 3
former U.S. States Secretary of State and U.S. Army general 1924–2010Related quotes

In the House of Commons, February 22, 1906 "King’s Speech (Motion for an Address)" http://hansard.millbanksystems.com/commons/1906/feb/22/kings-speech-motion-for-an-address#column_555, as Under-Secretary of the Colonial Office, repeating what he had said during the 1906 election campaign. This is the original context for terminological inexactitude, used simply literally, whereas later the term took on the sense of a euphemism or circumlocution for a lie. As quoted in Sayings of the Century (1984) by Nigel Rees.
Early career years (1898–1929)
Isidore Dyen, David F. Aberle (1974), Lexical Reconstruction: The Case of the Proto-Athapaskan Kinship System. p. 7
“The problem here is not so much a historical one, more a terminological and philosophical one.”
The Variable Spellings of the Hebrew Bible, p. 92

Popimage interview https://web.archive.org/web/20040803001942/http://www.popimage.com/content/grant20044.html
On magic
Context: All the comics are sigils. "Sigil" as a word is out of date. All this magic stuff needs new terminology because it's not what people are being told it is at all. It's not all this wearying symbolic misdirection that's being dragged up from the Victorian Age, when no-one was allowed to talk plainly and everything was in coy poetic code. The world's at a crisis point and it's time to stop bullshitting around with Qabalah and Thelema and Chaos and Information and all the rest of the metaphoric smoke and mirrors designed to make the rubes think magicians are "special" people with special powers. It's not like that. Everyone does magic all the time in different ways. "Life" plus "significance" = magic.
As quoted in Encore : A Continuing Anthology (December 1943) edited by Smith Dent, "Fischerisms" p. 709

1940s, To Every Briton (1940)
Context: I do not want Britain to be defeated, nor do I want her to be victorious in a trial of brute strength, whether expressed through the muscle or the brain. Your muscular bravery is an established fact. Need you demonstrate that your brain is also as unrivaled in destructive power as your muscle? I hope you do not wish to enter into such an undignified competition with the Nazis. I venture to present you with a nobler and a braver way, worthy of the bravest soldier. I want you to fight Nazism without arms, or, if I am to retain the military terminology, with non-violent arms. I would like you to lay down the arms you have as being useless for saving you or humanity. You will invite Herr Hitler and Signor Mussolini to take what they want of the countries you call your possessions. Let them take possession of your beautiful island, with your many beautiful buildings. You will give all these, but neither your souls, nor your minds. If these gentlemen choose to occupy your homes, you will vacate them. If they do not give you free passage out, you will allow yourself, man, woman and child, to be slaughtered, but you will refuse to owe allegiance to them.
This process or method, which I have called non-violent non-co-operation, is not without considerable success in its use in India. Your representatives in India may deny my claim. If they do, I shall feel sorry for them. <!-- They may tell you that our non-co-operation was not wholly non-violent, that it was born of hatred. If they give that testimony, I won’t deny it. Had it been wholly non-violent, if all the non-co-operators had been filled with goodwill towards you, I make bold to say that you who are India’s masters would have become her pupils and, with much greater skill than we have, perfected this matchless weapon and met the German and Italian friends’ menace with it. Indeed the history of Europe during the past few months would then have been written differently. Europe would have been spared seas of innocent blood, the rape of so many small nations, and the orgy of hatred.

Books, Islam and the West: A Conversation with Bernard Lewis (2006)
Source: An Introduction To Probability Theory And Its Applications (Third Edition), Chapter V, Conditional Probability, Stochastic Independence, p. 114.
Source: The Sayings and Teachings of the Great Mystics of Islam (2004), p. 271