Logic

Money will not give you happiness; it's part of the key.

— Logic

On the second half of 'Under Pressure,' I talk about my family, and there are voicemails on my phone from when I was on the road that actually make up the second half of the nine-minute song. I transcribe them and rap them as if I were my sister, my brother, or my father.

— Logic

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

— Logic

R. A. Fisher, J. Neyman, R. von Mises, W. Feller, and L. J. Savage denied vehemently that probability theory is an extension of logic, and accused Laplace and Jeffreys of committing metaphysical nonsense for thinking that it is.

— Logic

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

— Logic

If the world were a logical place, men would ride side saddle.

— Logic

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

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

You can only find truth with logic if you have already found truth without it.

— Logic

The real trouble with this world of ours is not that it is an unreasonable world, nor even that it is a reasonable one. The commonest kind of trouble is that it is nearly reasonable, but not quite. Life is not an illogicality; yet it is a trap for logicians. It looks just a little more mathematical and regular than it is; its exactitude is obvious, but its inexactitude is hidden; its wildness lies in wait.

— Logic

The morbid logician seeks to make everything lucid, and succeeds in making everything mysterious.

— Logic

Pierce wrote as a logician and James as a humanist.

— Logic

I grew up on Section 8 housing, food stamps, welfare, and dealing with social services. I never had a Christmas. I never had a birthday.

— Logic

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

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

To find themselves utterly alone at night where company is desirable and expected makes some people fearful; but a case more trying by far to the nerves is to discover some mysterious companionship when intuition, sensation, memory, analogy, testimony, probability, induction — every kind of evidence in the logician's list — have united to persuade consciousness that it is quite in isolation.

— Logic

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

To understand this for sense it is not required that a man should be a geometrician or a logician, but that he should be mad.

— Logic

Logic is logic. That's all I say.

— Logic

Logic is one thing and commonsense another.

— Logic

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

Logician: A cat has four paws. Logician: And the contrary is also true.

— Logic

Logic hasn't wholly dispelled the society of witches and prophets and sorcerers and soothsayers.

— Logic

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

— Logic

Logic is concerned with arguments, good and bad. With the docile and the reasonable, arguments are sometimes useful in settling disputes. With the reasonable, this utility attaches only to good arguments. It is the logician’s business to serve the reasonable. Therefore, in the realm of arguments, it is the logician who distinguishes good from bad.

— Logic

The book, as it stands, seems to me to be one of the most frightful muddles I have ever read, with scarcely a sound proposition in it beginning with page 45, and yet it remains a book of some interest, which is likely to leave its mark on the mind of the reader. It is an extraordinary example of how, starting with a mistake, a remorseless logician can end up in bedlam.

— Logic

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

Anyone who has heard (Jacques Derrida) lecture in French knows that he is more performance artist than logician. His flamboyant style--using free association, rhymes and near-rhymes, puns, and maddening digressions--is not just a vain pose (though it is surely that). It reflects what he calls a self-conscious "acommunicative strategy" for combating logocentrism.

— Logic

The pedant and the priest have always been the most expert of logicians—and the most diligent disseminators of nonsense and worse.

— Logic

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

— Logic

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

— Logic

It might … have been supposed that logicians and psychologists would have devoted special attention to meaning, since it is so vital for all the issues with which they are concerned. But that this is not the case will be evident[1] to anyone who studies the Symposium in Mind (October 1920 and following numbers) on "The Meaning of 'Meaning.'"

— 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 and mathematics seem to be the only domains where self-evidence manages to rise above triviality; and this it does, in those domains, by a linking of self-evidence on to self-evidence in the chain reaction known as proof.

— Logic

Logical analysis applied to mental phenomenon shows that there is but one law of mind, namely that ideas tend to spread continuously and to affect certain others which stand to them in a peculiar relation of affectibility. In this spreading they lose intensity, and especially the power of affecting others, but gain generality and become welded with other ideas.

— Logic

A certain maxim of Logic which I have called Pragmatism has recommended itself to me for diverse reasons and on sundry considerations.

— 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

Of course I'm inconsistent! Only logicians and cretins are consistent!

— Logic

The question of "unreality," which confronts us at this point, is a very important one. Misled by grammar, the great majority of those logicians who have dealt with this question have dealt with it on mistaken lines. They have regarded grammatical form as a surer guide in analysis than, in fact, it is. And they have not known what differences in grammatical form are important.

— Logic

All traditional logic habitually assumes that precise symbols are being employed. It is therefore not applicable to this terrestial life but only to an imagined celestial existence... logic takes us nearer to heaven than other studies.

— Logic

The apparent world goes through developments which are the same as those the logician goes through if he starts from Pure Being and travels on to the Absolute Idea... Why the world should go through this logical evolution is not clear; one is tempted to suppose that the Absolute Idea did not quite understand itself at first, and made mistakes when it tried to embody itself in events. But this, of course, was not what Hegel would have said.

— Logic

Pure logic is the ruin of the spirit.

— Logic

A crisis in doctrine occurred when they discovered that the square root of two was irrational. That is: the square root of two could not be represented as the ratio of two whole numbers, no matter how big they were. "Irrational" originally meant only that. That you can't express a number as a ratio. But for the Pythagoreans it came to mean something else, something threatening, a hint that their world view might not make sense, the other meaning of "irrational".

— Logic

Conceptual graphs are system of logic based on the existential graphs of Charles Sanders Peirce and the semantic networks of artificial intelligence. The purpose of the system is to express meaning in a form that is logically precise, humanly readable, and computationally tractable.

— Logic

Logic is in the eye of the logician.

— Logic

An idea starts to be interesting when you get scared of taking it to its logical conclusion.

— Logic

It takes extraordinary wisdom and self-control to accept that many things have a logic we do not understand that is smarter than our own.

— Logic

Logic tends to reduce everything to identities and genera, to each representation having no more than one single and self-same content in whatever place, time, or relation it may occur to us. And there is nothing that remains the same for two successive moments of its existence. My idea of God is different each time that I conceive it. Identity, which is death, is the goal of the intellect.

— Logic

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

Memory, then, is a necessary part of the logical faculty. … The proposition A A must have a psychological relation to time, otherwise it would be A.

— Logic

Roughly speaking: to say of two things that they are identical is nonsense, and to say of one thing that it is identical with itself is to say nothing.

— 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

I'm literally fighting for the equality of every man, woman and child regardless of race, religion, color, creed, and sexual orientation and here to spread a message of peace, love, and positivity.

— Logic

As much time and effort, emotion, anger, love, joy that you put into another human being, you're not guaranteed to receive that back. And that's OK. That's alright.

— Logic

I grew up on Section 8 housing, food stamps, welfare, and dealing with social services. I never had a Christmas. I never had a birthday.

— Logic