Logic Quotes

Most popular logic quotes

When you say, "The burned child dreads the fire," you mean that he is already a master of induction. - Isaac Asimov quote.
When you say, "The burned child dreads the fire," you mean that he is already a master of induction.
The distinctive Western character begins with the Greeks, who invented the habit of deductive reasoning and the science of geometry. - Bertrand Russell quote.
The distinctive Western character begins with the Greeks, who invented the habit of deductive reasoning and the science of geometry.

reason

No amount of observations of white swans can allow the inference that all swans are white, but the observation of a single black swan is sufficient to refute that conclusion. - David Hume quote.
No amount of observations of white swans can allow the inference that all swans are white, but the observation of a single black swan is sufficient to refute that conclusion.
When dealing with people, let us remember we are not dealing with creatures of logic. We are dealing with creatures of emotion, creatures bristling with prejudices and motivated by pride and vanity. - Dale Carnegie quote.
When dealing with people, let us remember we are not dealing with creatures of logic. We are dealing with creatures of emotion, creatures bristling with prejudices and motivated by pride and vanity.

human nature emotion

Logic, like whiskey, loses its beneficial effect when taken in too large quantities.
It is by logic that we prove, but by intuition that we discover. - Henri Poincare quote.
It is by logic that we prove, but by intuition that we discover.

intuition discovery

Briefly, you can only find truth with logic if you have already found truth without it. - G. K. Chesterton quote.
Briefly, you can only find truth with logic if you have already found truth without it.

truth

No mistake is more common and more fatuous than appealing to logic in cases which are beyond her jurisdiction. - Samuel Butler quote.
No mistake is more common and more fatuous than appealing to logic in cases which are beyond her jurisdiction.
A mind all logic is like a knife all blade.  It makes the hand bleed that uses it. - Rabindranath Tagore quote.
A mind all logic is like a knife all blade.  It makes the hand bleed that uses it.

mind

Logic is in the eye of the logician. - Gloria Steinem quote.
Logic is in the eye of the logician.

funny

People who lean on logic and philosophy and rational exposition end by starving the best part of the mind. - W. B. Yeats quote.
People who lean on logic and philosophy and rational exposition end by starving the best part of the mind.

rational thinking philosophy imagination

A mind all logic is like a knife all blade. It makes the hand bleed that uses it.
Logic is the kingdom of opposites in which nothing can be reconciled. Love has no such difficulty.