Quotes About Logic

How dangerous can false reasoning prove!

The tendency of modern science is to reduce proof to absurdity by continually reducing absurdity to proof.

Logic pervades the world; the limits of the world are also the limits of logic.

False conclusions which have been reasoned out are infinitely worse than blind impulse.

The trouble with most people is that they think with their hopes or fears or wishes rather than with their minds.

Answer a fool according to his folly.

Friendship is love minus sex and plus reason. Love is friendship plus sex and minus reason.

Common sense does not ask an impossible chessboard, but takes the one before it and plays the game.

I probably hold the distinction of being one movie star who, by all laws of logic, should never have made it. At each stage of my career, I lacked the experience.

Man is a reasoning, rather than a reasonable animal.

Nothing sways the stupid more than arguments they can't understand.

Irrationally held truths may be more harmful than reasoned errors.

Among the enduring truths I keep bumping into when there is the luxury of time to get to know people or institutions, is that their decisions are often made for what are not, strictly speaking, reasons of logic.

To him who looks upon the world rationally, the world in its turn presents a rational aspect. The relation is mutual.

A mathematician is a device for turning coffee into theorems.

I spent a lot of time on farms when I was growing up, and I've been obsessed with the practical logic of farmyards - the turning radius of tractors, where the chickens and ducks might go. It's not a place where stand-alone aesthetic decisions make a lot of sense.

The mind resorts to reason for want of training.

I believe in evidence-based decision making. I want to know what the facts are.

You can prove anything you want by coldly logical reason---if you pick the proper postulates.

There's a rule saying I have to ground anyone who's crazy ... There's a catch. Catch-22. Anyone who wants to get out of combat duty isn't really crazy.

There's no logic in how Donald Trump thinks. I don't want someone who's the president who says 3 to 5 million people voted illegally when there's zero proof. It's a crazy person.

When war comes, reason is regarded as treason.

However, there are ways of trying to strangle ideas that do not involve straightforward attempts at censorship or intimidation. The suggestion that there is something sinister, even un-American, about intense devotion to ideas, reason, logic, evidence, and precise language is one of them.

If enough money is involved, and enough people believe that two plus two equals five, the media will report the story with a straight face, always adding a qualifying paragraph noting that "mathematicians, however, say that two plus two still equals four." With a perverted objectivity that gives credence to nonsense, some mainstream news outlets have done more to undermine logic and reason than rapture ready.com could ever do.