Formal Logic Quotes

#1. The practical utility of Formal Logic to-day lies not so much in the establishment of positive conclusions as in the prompt detection and exposure of invalid inference.

Dorothy L. Sayers

#2. You know, in formal logic, an inconsistent set of axioms can be used to prove anything at all. Once you have a single contradiction, A and not A, there's nothing you can't derive from it.

Greg Egan

#3. In formal logic, a contradiction is the signal of a defeat; but in the evolution of real knowledge it marks the first step in progress towards a victory.

Alfred North Whitehead

#4. [Aristotle formal logic thus far (1787)] has not been able to advance a single step, and hence is to all appearances closed and completed.

Immanuel Kant

#5. Xenology is an unnatural mixture of science fiction and formal logic. At its core is a flawed assumption - that an alien race would be psychologically human.

Arkady Strugatsky

#6. In life two negatives don't make a positive. Double negatives turn positive only in math and formal logic. In life things just get worse and worse and worse.

Robert McKee

#7. Science is not formal logic-it needs the free play of the mind in as great a degree as any other creative art. It is true that this is a gift which can hardly be taught, but its growth can be encouraged in those who already posses it.

Max Born

#8. By abstaining from all definite content, whether as formal logic and theory of science or as the legend of Being beyond all beings, philosophy declared its bankruptcy regarding concrete social goals.

Theodor Adorno

#9. Lack of rule of law is the main reason Pakistan could not join the ranks of progressive nations.

Imran Khan

#10. The first person I came out to was God. And the first conversation I ever had with anybody was in prayer.

Andrew Sullivan

#11. There is one unmistakable lesson in American history: A community that allows a large number of young men to grow up in broken families, dominated by women, never acquiring any stable relationship to male authority, never acquiring any set of rational expectations about the future

Daniel Patrick Moynihan

#12. If you can't define something you have no formal rational way of knowing that it exists. Neither can you really tell anyone else what it is. There is, in fact, no formal difference between inability to define and stupidity.

Robert M. Pirsig

#13. the confidence people express often reflects their personalities rather than their knowledge, memory, or abilities.

Christopher Chabris

#14. Coding is the language of the future, and every girl should learn it. As I've learned from watching girls grow and learn in our classrooms, coding is fun, collaborative and creative.

Reshma Saujani

#15. For the artist himself art is not necessarily therapeutic; he is not automatically relieved of his fantasies by expressing them. Instead, by some perverse logic of creation, the act of formal expressions may simply make the dredged-up material more readily available to him.

Al Alvarez

#16. Logic is something the mind has created to conceal its timidity, a hocus-pocus designed to give formal validity to conclusions we are willing to accept if everybody else in our set will too.

Carl Lotus Becker

#17. Formality Thus the absence of all mention of particular things or properties in logic or pure mathematics is a necessary result of the fact that this study is, as we say, "purely formal".

Bertrand Russell

#18. I don't write fiction but I do write narrative; I write memoirs that I treat like stories, so whenever I'm using somebody I actually know as a model, I am submitting them to the agenda of a storyteller, and I feel free to do what I want.

Vivian Gornick

#19. It seems that more people today have a greater desire to live long than they do to live well.

Croft M. Pentz

#20. When I experience something, I believe it. I almost choked to death when I was a four year old and had a near death experience. I was very upset that I didn't die because it was a lot more interesting out of your body than in it.

Bernie Siegel

#21. Should the German people lay down their arms, the Soviets ... would occupy all eastern and south-eastern Europe, together with the greater part of the [German] Reich. All over this territory, which would be of an enormous extent, an iron curtain would at once descend.

Joseph Goebbels

#22. By a combination of formal training and self study, the latter continuing systematically well into the 1940s, I was able to gain a broad base of knowledge in economics and political science, together with reasonable skills in advanced mathematics, symbolic logic, and mathematical statistics.

Herbert A. Simon

#23. One may no more live in the world without picking up the moral prejudices of the world than one will be able to go to hell without perspiring.

H.L. Mencken

#24. That's how myths are born. Out of our carelessness, out of our tattered nerves, out of jokes that go wrong and flashy gestures.

Sergei Lukyanenko

#25. I'm very resilient. The only thing I'm missing right now are abs.

Artie Lange