On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question.

Having myself worked with a variety of tools, and having studied the art of constructing each of them, I at length laid it down as a principle — that, except in rare cases, I would never do anything myself if I could afford to hire another person who could do it for me.

Propose to an Englishman any principle, or any instrument, however admirable, and you will observe that the whole effort of the English mind is directed to find a difficulty, a defect, or an impossibility in it. If you speak to him of a machine for peeling a potato, he will pronounce it impossible: if you peel a potato with it before his eyes, he will declare it useless, because it will not slice a pineapple.

Our attraction to that quality which we have come to call 'beauty', and which we associate with the detection of innate unity and harmony in the face of superficial diversity, has led us to expect that the unity of the Universe should be expressed in certain particular ways. If we are physicists we might often hear talk of the 'beauty' or 'elegance' of particular ideas or theories to such an extent that, like Dirac, *we make aesthetic quality a guide or even a prerequisite for the formulation of correct mathematical theories of nature.

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I find no flaw in your reasoning about the Analytical Engine; I admire it; but you are aware that it rests entirely on the hypothesis that I care for the 'whole human race.

Some men write their lives to save themselves from ennui, careless of the amount they inflict on their readers.

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gently expressed a doubt whether the plan was possible, to which I replied that, not being able to prove its impossibility, I should follow out a slight glimmering of light which I thought I perceived.

...Propose to a man any principle, or an instrument, however admirable, and you will observe the whole effort is directed to find a difficulty, a defect, or an impossibility in it. If you speak to him of a machine for peeling a potato, he will pronounce it impossible: if you peel a potato with it before his eyes, he will declare it useless, because it will not slice a pineapple.

One of the most singular characteristics of the art of deciphering is the strong conviction possessed by every person, even moderately acquainted with it, that he is able to construct a cipher which nobody else can decipher. I have also observed that the cleverer the person, the more intimate is his conviction.

If I played any of the ordinary openings, such as are found in the books, I was sure to be beaten. The only way in which I had a chance of winning, was by making early in the game a move so bad that it had not been mentioned in any treatise.

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Em duas ocasiões me perguntaram: 'Diga-nos, Sr. Babbage, se introduzirmos dados errados na máquina, ainda sairão respostas corretas?' Eu não consigo compreender o tipo de confusão de ideias que motivou tal questão.

As soon as an Analytical Engine exists, it will necessarily guide the future course of the science. Whenever any result is sought by its aid, the question will then arise — by what course of calculation can these results be arrived at by the machine in the shortest time?

Forget this world and all its troubles and if possible its multitudinous Charlatans — everything in short but the Enchantress of Numbers.