Logic Quotes

From a drop of water, a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other.

Logic

• Water

Metaphysics may be, after all, only the art of being sure of something that is not so, and logic only the art of going wrong with confidence.

Logic

• Art
• May
• Confidence

Logic is a large drawer, containing some useful instruments, and many more that are superfluous. A wise man will look into it for two purposes, to avail himself of those instruments that are really useful, and to admire the ingenuity with which those that are not so, are assorted and arranged.

Logic

• Wise
• Logic

Logician: A cat has four paws. Old Gentleman: My dog had four paws. Logician: Then it's a cat. Old Gentleman: So my dog is a cat? Logician: And the contrary is also true.

Logic

• True
• Dog
• Cat

Logic is a feeble reed, friend. 'Logic' proved that airplanes can't fly and that H-bombs won't work and that stones don't fall out of the sky. Logic is a way of saying that anything which didn't happen yesterday won't happen tomorrow.

Logic

• Work
• Friend
• Fall

Pierce wrote as a logician and James as a humanist.

Logic

Logic, like whiskey, loses its beneficial effect when taken in too large quantities.

Logic

• Taken
• Logic
• Whiskey

As to the most prudent logicians might venture to deduce from a skein of wool the probable existence of a sheep; so you, from the raw stuff of perception, may venture to deduce a universe which transcends the reproductive powers of your loom.

Logic

• May
• Universe
• Perception

The want of logic annoys. Too much logic bores. Life eludes logic, and everything that logic alone constructs remains artificial and forced.

Logic

• Life
• Alone
• Logic

Logic is logic. That's all I say.

Logic

• Logic

Logic is usually understood nowadays as a study of certain formal systems, though in former times there were philosophers who held that the subject matter of logic was the formal rules of human thought.

Logic

• Study
• Logic

All men are mortal. Socrates was mortal. Therefore, all men are Socrates.

Logic

• Men

I have expos'd myself to the enmity of all metaphysicians, logicians, mathematicians, and even theologians; and can I wonder at the insults I must suffer?

Logic

• Wonder

Logic is a systematic method of coming to the wrong conclusion with confidence.

Logic

• Confidence
• Logic

No, no, you're not thinking; you're just being logical.

Logic

• Thinking

Logic: The art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding.

Logic

• Thinking
• Art
• Logic

It is by logic that we prove, but by intuition that we discover. To know how to criticize is good, to know how to create is better.

Logic

• Good
• Logic
• Intuition

'Contrariwise,' continued Tweedledee, 'if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic.'

Logic

• Logic

Logic is in the eye of the logician.

Logic

• Logic

Logic is neither a science nor an art, but a dodge.

Logic

• Art
• Science
• Logic

Pure logic is the ruin of the spirit.

Logic

• Logic

Logicians tell us that a system of ideas containing a contradiction can be used to deduce any statement whatsoever, no matter how absurd.

Logic

Logic is one thing and commonsense another.

Logic

• Logic

Fuzzy logic is a logic whose distinguishing features are (i) fuzzy truth-values expressed in linguistic terms, e.g., true, very true, more or less true, or somewhat true, false, nor very true and not very false, etc2.; (2) imprecise truth tables; and (3) rules of inference whose validity is relative to a context rather than exact.

Logic

• Truth
• True
• Logic