As soon as a thought or word becomes a tool, one can dispense with actually 'thinking' it, that is, with going through the logical acts involved in verbal formulation of it. As has been pointed out, often and correctly, the advantage of mathematics the model of all neo-positivistic thinking lies in just this 'intellectual economy.' Complicated logical operations are carried out without actual performance of the intellectual acts upon which the mathematical and logical symbols are based. ... Reason ... becomes a fetish, a magic entity that is accepted rather than intellectually experienced.
If we have no evidence of what happens after life, then there are infinite logical possibilities. Since there is only one kind of nothing, that means the chances of the being no afterlife is one in infinity. Therefore the only logical philosophy is that there is an afterlife, I just don't know what it is.
[Kepler] had to realize clearly that logical-mathematical theoretizing, no matter how lucid, could not guarantee truth by itself; that the most beautiful logical theory means nothing in natural science without comparison with the exactest experience. Without this philosophic attitude, his work would not have been possible.
I want you to observe... that those who cry the loudest about their disillusionment, about the failure of virtue, the futility of reason, the impotence of logic-are those who have achieved the full, exact, logical result of the ideas they preached, so mercilessly logical that they dare not identify it.
I only tend to think of the week ahead, to keep my eye on the ball and question whether a full stop is in the right place. It's easy to get distracted by the wrong things. If you start thinking of grand gestures, it's going to be a lot of hot air. You have to be logical. The theatre is a very logical place.
It really is worth the trouble to invent a new symbol if we can thus remove not a few logical difficulties and ensure the rigour of the proofs. But many mathematicians seem to have so little feeling for logical purity and accuracy that they will use a word to mean three or four different things, sooner than make the frightful decision to invent a new word.
Once infected, the individual [infected with a god virus] cannot detect major contradictions in his beliefs and behavior. Belief systems become self-evident to him, and no amount of logical discourse will move him from his belief. If a Mormon and Catholic were to debate the merits of their respective religions, neither could see his own inconsistencies and logical fallacies, but would see the other's quite clearly.
More philosophically-minded critics regarded Einstein's argument for relativity as little more than a logical bait-and-switch ploy: "[T]he supposition of most expounders of the Special Theory, that Einstein has proved the relativity of simultaneity in general - or that his 'simultaneity' is something more than a logical artefact - must manifestly be given up.
Arthur Oncken Lovejoy
It remains to mention some of the ways in which people have spoken misleadingly of logical form. One of the commonest of these is to talk of 'the logical form' of a statement; as if a statement could never have more than one kind of formal power; as if statements could, in respect of their formal powers, be grouped in mutually exclusive classes, like animals at a zoo in respect of their species. But to say that a statement is of some one logical form is simply to point to a certain general class of, e.g., valid inferences, in which the statement can play a certain role. It is not to exclude the possibility of there being other general classes of valid inferences in which the statement can play a certain role
Peter Frederick Strawson
One must have common sense, nothing is permanent, nothing endures. I have come to the conclusion that this place is run by a madman. A madman, let me tell you, can be very logical. If you are rich and logical and also mad, you can succeed for a very long time in living out your illusion. But in the end... in the end this will break up. Because, you see, it is not reasonable what happens here! That which is not reasonable must always pay the reckoning in the end. ~Dr. Barron
Satan frequently steals the will of God from us due to reasoning. The Lord may direct us to do a certain thing, but if it does not make sense - if it is not logical - we may be tempted to disregard it. What God leads a person to do does not always make logical sense to his mind. His spirit may affirm it and His mind reject it, especially if it would be out of the ordinary or unpleasant or if it would require personal sacrifice or discomfort.
Logical reasoning may be a most convenient means of mental communication for covering short distances, but the curvature of the earth, alas, is reflected even in logic: an ideally rational progression of thought will finally bring you back to the point of departure where you return aware of the simplicity of genius, with a delightful sensation that you have embraced truth, while actually you have merely embraced your own self... anything you might term a deduction already exposes the flaw: logical development inexorably becomes an envelopment.
So long as the processes of healing were not understood and man thought that the power to heal resided in substances and things outside of him, he logically sought for extrinsic means of healing, and a healing art was a logical development. The system of medicine, as we know it today, was a logical development out of the fallacy that healing power resides in extrinsic sources.
Herbert M. Shelton
If I hold my head to the left and look down at the handle grips and front wheel and map carrier and gas tank I get one pattern of sense data. If I move my head to the right I get another slightly different pattern of sense data. The two views are different. The angles of the planes and curves of the metal are different. The sunlight strikes them differently. If there's no logical basis for substance then there's no logical basis for concluding that what's produced these two views is the same motorcycle.
Robert M. Pirsig
I can't charge you 99 cents for a book called 99 Cents For Some Nonsense, because that would make sense. However, I have to charge you 99 cents, because it makes sense not to. So to do it is logical, and to not do it is logical, and I don't know what to do! What's worse, I don't even know what not to do. I think I'll flip a coin-a penny-and I'll flip it 99 times, and the side it lands on 45 times, that's what I'll do.
We know that mathematicians care no more for logic than logicians for mathematics. The two eyes of science are mathematics and logic; the mathematical set puts out the logical eye, the logical set puts out the mathematical eye; each believing that it sees better with one eye than with two. Note that De Morgan, himself, only had sight with only one eye.
Augustus De Morgan
For centuries, we in the West have thought of ourselves as rational animals whose mental capacities transcend our bodily nature. In this traditional view our minds are abstract, logical, unemotionally rational, consciously accessible, and, above all, able to directly fit and represent the world. Language has a special place in thie view of what a human is - it is a privileged, logical symbol system internal to our minds that transparently expresses abstract concepts that are defined in terms of the external world itself.
The answer to the question raised in the title of this essay - Is salvation a matter of divine determination or human responsibility? - is not divine determination or human responsibility. The only thoroughly biblical answer is yes. Scripturally, it is not an 'either-or' but a 'both-and' proposition. Why is this so hard? For one thing, it is logically unsatisfactory and apparently contradictory. Our insatiable appetite for order and answers makes it difficult to admit... that God's ways are not our ways, and leave it at that. (Isaiah 55:9). We don't mind applying this principle in a general, hypothetical way to God's wisdom or methods. But we balk when interferes with our theological system, our obsession with pigeonholing every Bible fact into a neat, orderly arrangement that leaves no questions unanswered. God transcends our logic. He is supra-logical. His thinking, His design, His way, His theology is infinitely above our intellect, beyond the grasp of our comprehension, out of the reach of our clever rationalizations. God is theo-logical. Man is anthropo-logical.
God cautions us in Isaiah 55:9 that his ways are not ours and his thoughts are higher than our thoughts (undoubtedly one of the grander understatements). God is warning us that he is not logical and that believing him to be logical will lead to all kinds of disappointment. Logic has been defined as 'the science or history of the human mind, as it traces the progress of our knowledge from our first conceptions through their different combinations, and the numerous deductions that result from comparing them with one another.' Doesn't sound much like God. Yet, we so often strain our relatively minuscule brains to conceive, combine, compare, and deduce. Then we fault God when his conclusions disagree. The repetition of this useless exercise leads to a form of insanity which ultimately manifests in denial of the existence of such an illogical God.
The real purpose of the scientific method is to make sure Nature hasn't misled you into thinking you know something you don't actually know. There's not a mechanic or scientist or technician alive who hasn't suffered from that one so much that he's not instinctively on guard. That's the main reason why so much scientific and mechanical information sounds so dull and so cautious. If you get careless or go romanticizing scientific information, give it a flourish here and there, Nature will soon make a complete fool out of you. It does it often enough anyway even when you don't give it opportunities. One must be extremely careful and rigidly logical when dealing with Nature: one logical slip and an entire scientific edifice comes tumbling down. One false deduction about the machine and you can get hung up indefinitely.
Robert M. Pirsig