Quotes About Logic

Hegel thought that, if enough was known about a thing to distinguish it from all other things, then all its properties could be inferred by logic. This was a mistake, and from this mistake arose the whole edifice of his system. This illustrates an important truth, namely, that the worse your logic, the more interesting the consequences.

is clear that human knowledge must always be content to accept some terms as intelligible without definition

All names of places--London, England, Europe, the Earth, the Solar System--similarly involve, when used, descriptions which start from some one or more particulars with which we are acquainted. I suspect that even the Universe, as considered by metaphysics, involves such a connexion with particulars. In logic, on the contrary, where we are concerned not merely with what does exist, but with whatever might or could exist or be, no reference to actual particulars is involved.

I suspect that even the Universe, as considered by metaphysics, involves such a connexion with particulars. In logic, on the contrary, where we are concerned not merely with what does exist, but with whatever might or could exist or be, no reference to actual particulars is involved.

Peano. He showed that the entire theory of the natural numbers could be derived from three primitive ideas and five primitive propositions in addition to those of pure logic.

Any theory on the principles of mathematics must always be inductive i.e. it must lie in the fact that the theory in question enables us to deduce ordinary mathematics.

every progression verifies Peano's five axioms.

It can be shown that a mathematical web of some kind can be woven about any universe containing several objects. The fact that our universe lends itself to mathematical treatment is not a fact of any great philosophical significance.

For my part, I prefer the ontological argument, the cosmological argument and the rest of the old stock-in-trade, to the sentimental illogicality that has sprung from Rousseau.

Extraordinary observations require extraordinary evidence.

Many who have had an opportunity of knowing any more about mathematics confuse it with arithmetic, and consider it an arid science. In reality, however, it is a science which requires a great amount of imagination.

Anecdotal thinking comes naturally; science requires training.

Nobody gets argued all the way into becoming a believer on the sheer basis of logic and reason. That requires a leap of faith.

Nothing requires a greater effort of thought than arguments to justify the rule of non-thought.

If you believe you are right, then you should believe that you can make the case that you're right. This requires you to deal with serious objections properly.

By logic, it's a handicap. If I shut one eye, I can't see from the other eye. But it is one of those things which I don't think too much about. One needs to have the strength to move forward.

When the coronavirus-positive cases were 500 in the country, you ordered the shops to shut down, and now when the tally has crossed 50,000 you are opening them. I don't understand the logic.

Bad reasoning as well as good reasoning is possible; and this fact is the foundation of the practical side of logic.

I continue to be fascinated by the fact that feelings are not just the shady side of reason but that they help us to reach decisions as well.

I think that, for physicians who want to become writers, they have the material, the smarts, they have the logic, they know the stories; it's just a matter of being able to connect with their emotional sides - that's the key to writing good fiction.

Throughout my journey, I just want to continue to showcase the different sides of me. Everything I do is easy if I have that logic.

I've always worked a lot with silence in my films. It forces the audience to concentrate on what they're seeing, because silence is pure emotions. It has no logic; it goes straight to the heart.

It would have been more logical if silent pictures had grown out of the talkies instead of the other way around.

Simple logic dictates that if you cannot even conceive the possibility of leaving a negotiation, then it is preferable never to enter one.