Reason Quotes

Proof requires agreement on a set of axioms.

Trying to understand

Samuel Beckett

Outrage leaves little room for reason.

A Carnivore’s History

Fallacies do not cease to be fallacies because they become fashions.

G K Chesterton

There’s atoms and empty space. All else is opinion.


It is more reasonable to believe that UFOs are the result of the known, irrational behavior of terrestrials than the unknown, rational behavior of extraterrestrials.

Richard Feynman

All reason can do is to argue what seems reasonable.

Richard Feynman paraphrased

Most of us have, in some area or other of our thinking, improper habits of evaluation. For this, society itself is to blame: most societies systematically encourage, concerning certain topics, the habitual confusion of symbols with things symbolized.

SI Hayakawa

What good is intelligence if our primary use of it is to deceive ourselves?

Michio Kaku

Plurality ought not to be posited without necessity.
(That is, The simplest answer may be the best.)

William of Occam

Who am I to be objective?


A human usually sets the premises in place before activating the logic process.

Leonard Shlain

The only way to make kids understand sometimes is to reason with them really loud.

Cecil, The Straight Dope

The gods offer no rewards for intellect. There was never one yet that showed any interest in it.

Mark Twain

All thought is metaphor.


Seek simplicity: and distrust it.

Alfred North Whitehead

Any man will listen to reason for a while, but when the passions rise, reason is as quickly forgotten as the graffiti in a shit house.

Robert Anton Wilson

You can refute Hegel but not the Saint or the Song of Sixpence.

William Butler Yeats

Theory is the highest form of knowledge
A sentient creature can aspire to.

Fact … Evidence … Proof …
Such concepts require an epistemology at least roughly agreed upon.

Saint Paul was quite right to suspect human reason. We should learn the lesson well: suspecting Paul’s and our own reasoning too.

Reason doesn’t rule. The tribe rules.

About pk

Seems to me that some modicum of honesty is requisite to intelligence. If we look in the mirror and see not kleptocrats but Christians, we’re still in the same old trouble.
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