Top 1200 Proof Quotes & Sayings

Not to be a socialist at twenty is proof of want of heart; to be one at thirty is proof of want of head.

The only possible proof of the existence of water, the most convincing and the most intimately true proof, is thirst.

Is there any proof that I'm a bust? All there is proof of is that I have bad luck with injuries.

The proof of battle is action, proof of words, debate. No time for speeches now, it's time to fight.

The proof that the little prince existed is that he was charming, that he laughed, and that he was looking for a sheep. If anybody wants a sheep, that is a proof that he exists.

What God declares the believing heart confesses without the need of further proof. Indeed, to seek proof is to admit doubt, and to obtain proof is to render faith superfluous.

It is not proof that I sought. I, of all men, know that proof is but a fallacy invented by man to justify to himself and his fellows his own crass lust and folly.

I worked every day there, so I knew all the details. But I needed only some proof. So the proof was photos.

Wisdom is not finally tested by the schools, Wisdom cannot be pass'd from one having it to another not having it, Wisdom is of the soul, is not susceptible of proof, is its own proof.

Love can never be a sin. It can be only a blessing. Even if you're not loved in return -- though I can't imagine that -- to love is a proof of life -- indeed, it's the only proof, for once you can't love another human being, you're not alive.

It is not conclusive proof of a doctrine's correctness that its adversaries use the police, the hangman, and violent mobs to fight it. But it is a proof of the fact that those taking recourse to violent oppression are in their subconscious convinced of the untenability of their own doctrines.

Ghosts cannot be put on the witness stand, or have their fingerprints taken. They are completely proof against proof.

The Atheist waits for proof of God. Till that proof comes he remains, as his name implies, without God. His mind is open to every new truth, after it has passed the warder Reason at the gate.

If we want proof of God's love for us, then we must look first at the Cross where God offered up His Son as a sacrifice for our sins. Calvary is the one objective, absolute, irrefutable proof of God's love for us.

I have no proof for any proof.

Look at us! Are we not proof that there is no good, no evil, no truth, no reason? Are we not proof that the universe is a drooling idiot with no fashion sense - Mr Nobody on the fundamental philosophy of the Brotherhood of DADA

The rationalist imagines an imbecile-free society; the empiricist and imbecile-proof one, or even better, a rationalist-proof one.

The proof of the depth and embodiment of your realization will be seen in your love relationship. That's where the proof is in the pudding. If it all collapses in your relationship, you have some work to do. And people do have a lot of difficulties in their relationships.

The man who is anybody and who does anything is surely going to be criticized, vilified, and misunderstood. This is a part of the penalty for greatness, and every great man understands it; and understands, too, that it is no proof of greatness. The final proof of greatness lies in being able to endure contumely without resentment.

For those who want some proof that physicists are human, the proof is in the idiocy of all the different units which they use for measuring energy.

I don't believe Fermat had a proof. I think he fooled himself into thinking he had a proof.

Proof, being the highest level of reproduction activity, has an important interiorization aspect: as Yuri Manin stresses in his book Provable and Unprovable, a proof becomes such only after it is accepted (as the result of a highly rigorous process) ... Manin describes the act of acceptance as a social act; however, the importance of its personal, psychological component can hardly be overestimated.

John was in constant need of proof of love and security and he was constantly testing people for that proof.

I mean the word proof not in the sense of the lawyers, who set two half proofs equal to a whole one, but in the sense of a mathematician, where half proof = 0, and it is demanded for proof that every doubt becomes impossible.

Well, did he do it?" She always asked the irrelevant question. It didn't matter in terms of the strategy of the case whether the defendant "did it" or not. What mattered was the evidence against him -- the proof -- and if and how it could be neutralized. My job was to bury the proof, to color the proof a shade of gray. Gray was the color of reasonable doubt.

A proof only becomes a proof after the social act of "accepting it as a proof".

When Pococke inquired of Grotius, where the proof was of that story of the pigeon, trained to pick peas from Mahomet's (Muhammad's) ear, and pass for an angel dictating to him? Grotius answered that there was no proof!

It's gratifying to know that you've appeared in someone else's dreams. It's proof that you exist, in a way, proof that you have substance and value outside the walls of your own mind.

Unless and until it can be proven that an unborn child is not a living human being, can we justify assuming without proof that it isn't? No one has yet offered such proof; indeed, all the evidence is to the contrary.

The source of Pyrrhonism comes from failing to distinguish between a demonstration, a proof and a probability. A demonstration supposes that the contradictory idea is impossible; a proof of fact is where all the reasons lead to belief, without there being any pretext for doubt; a probability is where the reasons for belief are stronger than those for doubting.

I would not read the proof of one of my books for any fair & reasonable sum whatever, if I could get out of it. The proof-reading on the P & Pauper cost me the last rags of my religion.

One can never really give a proof of the reality of anything; reality is not something open to proof, it is something established. It is established just because proof is not enough. It is this characteristic of language, at once indispensable and inadequate, which shows the reality of the external world. Most people hardly ever realize this, because it is rare that the very same man thinks and puts his thought into action.

But what of faith? What of fidelity and loyalty? Complete trust? Faith is not granted by tangible proof. It comes from the heart and the soul. If a person needs proof of god's existence, then the very notion of spirituality is diminished into sensuality and we have reduced what is holy into what is logical.-Drizzt Do'urden

The photograph is kind of a proof - a proof that I actually met these people, that they actually have lives, and that they're worth considering.

The Phoenicians are entitled to be commemorated in history by the side of the Hellenic and Latin nations; but their case affords a fresh proof, and perhaps the strongest proof of all, that the development of national energies in antiquity was of a one-sided character.

I don't like to think of it as 'stolen'. They have no proof that I didn't plan on giving it back." "You're kidding, right?" He shrugged. "You have no proof either." She squinted back at him. "Were you planning on giving it back?" "Maybe." An orange light blinked on in the corner of Cinder's vision-her cyborg programming picking up on the lie.

For those who believe, no proof is necessary. For those who disbelieve, no amount of proof is sufficient.

But my relief that David Auburn's Proof is less about its ballyhooed higher mathematics than the fragility of life and love was matched by my delight in his fine and tender play. (...) Proof surprises us with its aliveness and intelligent modesty, and we have not met these characters before.

My proof convinces the ignorant, and the wise man's proof convinces me. But he whose reasoning falls between wisdom and ignorance, I neither can convince him, nor can he convince me.

We have here a proof that there is in the atom a fundamental quantity, which increases by regular steps as one passes from one element to the next. This quantity can only be the charge on the central positive nucleus, of the existence of which we already have definite proof.

I read in the proof sheets of Hardy on Ramanujan: "As someone said, each of the positive integers was one of his personal friends." My reaction was, "I wonder who said that; I wish I had." In the next proof-sheets I read (what now stands), "It was Littlewood who said..."

O was infinitely more moving when her body was covered with marks, of whatever kind, if only because these marks made it impossible for her to cheat and immediately proclaimed, the moment they were seen, that anything went as far as she was concerned. For to know this was one thing, but to see the proof of it, and to see the proof constantly renewed, was quite another.

The scientist believes in proof without certainty, the bigot in certainty without proof.

Proof is boring. Proof is tiresome. Proof is an irrelevance. People would far rather be handed an easy lie than search for a difficult truth, especially if it suits their own purposes.

Be sceptical, ask questions, demand proof. Demand evidence. Don't take anything for granted. But here's the thing: When you get proof, you need to accept the proof. And we're not that good at doing that.

I am obliged to interpolate some remarks on a very difficult subject: proof and its importance in mathematics. All physicists, and a good many quite respectable mathematicians, are contemptuous about proof. I have heard Professor Eddington, for example, maintain that proof, as pure mathematicians understand it, is really quite uninteresting and unimportant, and that no one who is really certain that he has found something good should waste his time looking for proof.

As it is natural to believe many things without proof, so, despite all proof, is it natural to disbelieve others.

All writing seems to me worse in the state of proof than in any other form. In manuscript one's own wisdom is rather remarkable to one, but in proof it has the effect of one's private furniture repeated in the shop windows. And then there is the sense that the worst errors will go to press unnoticed!

I don't believe anything till I have seen the proof. For anything without proof, I think we should believe the theory that gives us peace. It doesn't matter whether the theory is true or not.

You made a point about proof. In this sort of history we do nt have proof... Yet... the incontrovertibility of the evidence can be plain even when it is not documentary or complete.

I felt like I had proof that not all days are the same length, not all time has the same weight. Proof that there are worlds and worlds and worlds on top of worlds, if you want them to be there.

To execute a man we don't need proof of his guilt. We only need proof that it's necessary to execute him. It's that simple.

Not thinking critically, I assumed that the successful prayers were proof that God answers prayer while the failures were proof that there was something wrong with me.

There are such beings as vampires, some of us have evidence that they exist. Even had we not the proof of our own unhappy experience, the teachings and the records of the past give proof enough for sane peoples.

I've had people say to me, 'Look at the sky, the fields, the ocean, the beautiful sunset. Isn't that proof positive of God?' Following that line of thought, look at the magnificent rainbows after a big rainstorm. Isn't that proof positive that God is gay?

A proof is a proof. What kind of a proof? It's a proof. A proof is a proof. And when you have a good proof, it's because it's proven.

The proof is in the results, and the proof will be in the ongoing ability to execute.

Act on your inner guidance, and give up your need for 'proof' that your inner guidance is authentic. The more you ask for proof, the less likely you are to receive any.

The result of the mathematician's creative work is demonstrative reasoning, a proof; but the proof is discovered by plausible reasoning, by guessing.

The perfectly natural thing to do with an unreadable book is to give it away; and the publication, for more than a quarter of a century, of volumes which fulfilled this one purpose and no other is a pleasant proof, if proof were needed, of the business principles which underlay the enlightened activity of publishers.