Logic Quote by Sarah Arthur
““The basic principles of logic dictate that a statement cannot be both true and false at the same time... and that a statement must be either true or false... Lucy is lying, or she is crazy, or she is telling the truth. She can’t be some combination, and she can’t be none of those things... The laws of logic dictate that she must be one of them... Notice how practical common sense about the suposed impossibility of other worlds doesn’t come into the equation.””
About This Quote
The quote asserts that classical logic forces a proposition to be either true or false, rejecting any middle ground or alternative possibilities, and criticizes the exclusion of common sense in such strict reasoning.
In simple terms: Logic forces binary truth values, rejecting nuance.
Key Takeaway
Recognize when strict logic may overlook real‑world complexity.
Themes
logic
philosophy
critical thinking
Mood
analytical
skeptical
Type
philosophical
critical
When to use this quote
- debates
- philosophical discussions
- academic lectures
- legal arguments
- ethical dilemmas
Key Concepts
binary truth
law of excluded middle
common sense
metaphysics
Questions to Reflect On
- How do you balance logical rigor with practical intuition?
- When might a binary view be harmful?
A Different Perspective
Logic may oversimplify complex situations.
![“Just between you and me, shouldn’t the World Bank be encouraging MORE migration of the dirty industries to the LDCs [Less Developed Countries]?... I think the economic logic behind dumping a load of toxic waste in the lowest wage country is impeccable and we should face up to that... I’ve always…” quote by Lawrence Summers](https://sms4smile.com/quotes/img-quotes/ac4/lawrence-summers-16940_air_just-between-you-and-me-shouldn-t-the-wo_4703.jpg)
