Quotes About Deduction

when this original intellectual deduction is confirmed point by point by quite a number of independent incidents, then the subjective becomes objective and

than theories, after all. My view of the case is confirmed. There is a trapdoor communicating with the roof, and

Lestrade had learned by more experiences than he would care to acknowledge that that brain could cut through that which was impenetrable to him.

Excellent! I cried. Elementary, said he. It

Cuando has eliminado lo imposible, lo que queda, por muy improbable que parezca, tiene que ser la verdad.

Arthur Conan Doyle

I am sure, Mr Holmes, that we are very much indebted to you for having cleared the matter up. I wish I knew how you reach your results.' 'I reached this one,' said my friend, 'by sitting upon five pillows and consuming an ounce of shag.

and believe me to be, my dear fellow, Very sincerely yours, Sherlock Holmes

From a drop of water, said the writer, a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other. So all life is a great chain, the nature of which is known whenever we are shown a single link of it. Like all other arts, the Science of Deduction and Analysis is one which can only be acquired by long and patient study nor is life long enough to allow any mortal to attain the highest possible perfection in it.

Like all other arts, the Science of Deduction and Analysis is one which can only be acquired by long and patient study nor is life long enough to allow any mortal to attain the highest possible perfection in it.

Casi todo el mundo, ante una sucesión de hechos, acertará a colegir qué se sigue de ellos... Los distintos acontecimientos son percibidos por la inteligencia, en la que, ya organizados, apuntan a un resultado. A partir de éste, sin embargo, pocas gentes saben recorrer el camino contrario, es decir, el de los pasos cuya sucesión condujo al punto final. A semejante virtud deductiva llamo razonar hacia atrás o analíticamente

You will remember, Watson, how the dreadful business of the Abernetty family was first brought to my notice by the depth which the [585] parsley had sunk into the butter upon a hot day.

To Sherlock Holmes she is always the woman. I have seldom heard him mention her under any other name. In his eyes she eclipses and

That one word, my dear Watson, should have told me the whole story had I been the ideal reasoner which you are so fond of depicting. It was evidently a term of reproach.

solving a problem of this sort, the grand thing is to be able to reason backward.

I can see nothing," said I, handing it back to my friend. "On the contrary, Watson, you can see everything. You fail, however, to reason from what you see. You are too timid in drawing your inferences.

In solving a problem of this sort, the grand thing is to be able to reason backwards. That

racy, his cold eyes glitter into ardent life, and his Don

É um grande erro teorizar antes de ter todos os indícios. Prejudica o raciocínio.

Arthur Conan Doyle

When a fact appears to be opposed to a long train of deductions, it invariably proves to be capable of bearing some other interpretation. (Sherlock)

With a keen eye for details, one truth prevails.

You will not apply my precept, he said, shaking his head. How often have I said to you that when you have eliminated the impossible, whatever remains, however improbable, must be the truth? We know that he did not come through the door, the window, or the chimney. We also know that he could not have been concealed in the room, as there is no concealment possible. When, then, did he come? Sherlock Holmes in The Sign of the Four

When the impossible has been eliminated, all that remains no matter how improbable is possible.