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1 " For the same reason there is nowhere to begin to trace the sheaf or the graphics of differance. For what is put into question is precisely the quest for a rightful beginning, an absolute point of departure, a principal responsibility. The problematic of writing is opened by putting into question the value of the arkhe. What I will propose here will not be elaborated simply as a philosophical discourse, operating according to principles, postulates, axioms, or definitions, and proceeding along the discursive lines of a linear order of reasons. In the delineation of differance everything is strategic and adventurous. Strategic because no transcendent truth present outside the field of writing can govern theologically the totality of the field. Adventurous because this strategy is a not simple strategy in the sense that strategy orients tactics according to a final goal, a telos or theme of domination, a mastery and ultimate reappropriation of the development of the field. Finally, a strategy without finality, what might be called blind tactics, or empirical wandering if the value of empiricism did not itself acquire its entire meaning in opposition to philosophical responsibility. If there is a certain wandering in the tracing of differance, it no more follows the lines of philosophical-logical discourse than that of its symmetrical and integral inverse, empirical-logical discourse. The concept of play keeps itself beyond this opposition, announcing, on the eve of philosophy and beyond it, the unity of chance and necessity in calculations without end. "

Jacques Derrida , Margins of Philosophy

4 " Something else gets under your skin, keeps you working days and nights at the sacrifice of your sleeping and eating and attention to your family and friends, something beyond the love of puzzle solving. And that other force is the anticipation of understanding something about the world that no one has ever understood before you.Einstein wrote that when he first realized that gravity was equivalent to acceleration -- an idea that would underlie his new theory of gravity -- it was the " happiest thought of my life." On projects of far smaller weight, I have experienced that pleasure of discovering something new. It is an exquisite sensation, a feeling of power, a rush of the blood, a sense of living forever. To be the first vessel to hold this new thing.All of the scientists I've known have at least one more quality in common: they do what they do because they love it, and because they cannot imagine doing anything else. In a sense, this is the real reason a scientist does science. Because the scientist must. Such a compulsion is both blessing and burden. A blessing because the creative life, in any endeavor, is a gift filled with beauty and not given to everyone, a burden because the call is unrelenting and can drown out the rest of life.This mixed blessing and burden must be why the astrophysicist Chandrasekhar continued working until his mid-80's, why a visitor to Einstein's apartment in Bern found the young physicist rocking his infant with one hand while doing mathematical calculations with the other. This mixed blessing and burden must have been the " sweet hell" that Walt Whitman referred to when he realized at a young age that he was destined to be a poet. " Never more," he wrote, " shall I escape. "

8 " My head ached. I was thinking of the pain, and wondering how it was possible for physical agony to be so intense. I had never imagined that such a torture could be endured. Yet here was I, both conscious and able to think clearly. And not only to think, but to observe the process and make calculations about it. The steel circle round my skull was closing in with faint cracking noises. How much farther could it shrink? I counted the cracking sounds. Since I took the triple dose of pain-killer, there had been two more. …I took out my watch and laid it on the table.

“Give me morphia,” I said in a calm, hostile, icy tone.

“You mustn’t take morphia! You know perfectly well. The very idea! And what are you doing with that watch?”

“You will give me morphia within three minutes.”

They looked me uneasily up and down. No one moved. Three minutes went by. Then ten more. I slipped the watch calmly into my pocket and rose unsteadily to my feet.

“Then take me to the Fiakker Bar. They say it’s a good show, and to-night I want to enjoy myself.”

The others jumped up with a feeling of relief.

I never confessed the secret to anyone, either then or afterwards. I had made up my mind at the end of those three minutes — for the first and last time in my life — that if my headache had not stopped within the next ten I should throw myself under the nearest tram.

It never came out whether I should have kept to my resolve, for the pain left with the suddenness of lighting. "

Frigyes Karinthy ,

14 " This mundus tenebrosus, this shaddowy world of Mankind, is sunk into Night; there is not a Field without its Spirits, nor a City without its Daemons, and the Lunaticks speak Prophesies while the Wise men fall into the Pitte. We are all in the Dark, one with another. And, as the Inke stains the Paper on which it is spilt and slowly spreads to Blot out the Characters, so the Contagion of darkness and malefaction grows apace until all becomes unrecognizable. Thus it was with the Witches who were tryed by Swimming not long before, since once the Prosecution had commenced no Stop could be put to the raving Women who came forward: the number of Afflicted and Accused began to encrease and, upon Examination, more confess'd themselves guilty of Crimes than were suspected of. And so it went, till the Evil revealed was so great that it threatened to bring all into Confusion.

And yet in the way of that Philosophie much cryed up in London and elsewhere, there are those like Sir Chris. who speak only of what is Rational and what is Demonstrated, of Propriety and Plainness. Religion Not Mysterious is their Motto, but if they would wish the Godhead to be Reasonable why was it that when Adam heard that Voice in the Garden he was afraid unto Death? The Mysteries must become easy and familiar, it is said, and it has now reached such a Pitch that there are those who wish to bring their mathematicall Calculations into Morality, viz. the Quantity of Publick Good produced by any Agent is a compound Ratio of his Benevolence and Abilities, and such like Excrement. They build Edifices which they call Systems by laying their Foundacions in the Air and, when they think they are come to sollid Ground, the Building disappears and the Architects tumble down from the Clowds. Men that are fixed upon matter, experiment, secondary causes and the like have forgot there is such a thing in the World which they cannot see nor touch nor measure: it is the Praecipice into which they will surely fall. "

Peter Ackroyd , Hawksmoor

18 " What we can imagine as plausible is a narrow band in the middle of a much broader spectrum of what is actually possible. [O]ur eyes are built to cope with a narrow band of electromagnetic frequencies. [W]e can't see the rays outside the narrow light band, but we can do calculations about them, and we can build instruments to detect them. In the same way, we know that the scales of size and time extend in both directions far outside the realm of what we can visualize. Our minds can't cope with the large distances that astronomy deals in or with the small distances that atomic physics deals in, but we can represent those distances in mathematical symbols. Our minds can't imagine a time span as short as a picosecond, but we can do calculations about picoseconds, and we can build computers that can complete calculations within picoseconds. Our minds can't imagine a timespan as long as a million years, let alone the thousands of millions of years that geologists routinely compute. Just as our eyes can see only that narrow band of electromagnetic frequencies that natural selection equipped our ancestors to see, so our brains are built to cope with narrow bands of sizes and times. Presumably there was no need for our ancestors to cope with sizes and times outside the narrow range of everyday practicality, so our brains never evolved the capacity to imagine them. It is probably significant that our own body size of a few feet is roughly in the middle of the range of sizes we can imagine. And our own lifetime of a few decades is roughly in the middle of the range of times we can imagine. "

Richard Dawkins , The Blind Watchmaker: Why the Evidence of Evolution Reveals a Universe Without Design

19 " [W]e can calculate our way into regions of miraculous improbability far greater than we can imagine as plausible. Let's look at this matter of what we think is plausible. What we can imagine as plausible is a narrow band in the middle of a much broader spectrum of what is actually possible. Sometimes it is narrower than what is actually there. There is a good analogy with light. Our eyes are built to cope with a narrow band of electromagnetic frequencies (the ones we call light), somewhere in the middle of the spectrum from long radio waves at one end to short X-rays at the other. We can't see the rays outside the narrow light band, but we can do calculations about them, and we can build instruments to detect them. In the same way, we know that the scales of size and time extend in both directions far outside the realm of what we can visualize. Our minds can't cope with the large distances that astronomy deals in or with the small distances that atomic physics deals in, but we can represent those distances in mathematical symbols. Our minds can't imagine a time span as short as a picosecond, but we can do calculations about picoseconds, and we can build computers that can complete calculations within picoseconds. Our minds can't imagine a timespan as long as a million years, let alone the thousands of millions of years that geologists routinely compute. Just as our eyes can see only that narrow band of electromagnetic frequencies that natural selection equipped our ancestors to see, so our brains are built to cope with narrow bands of sizes and times. Presumably there was no need for our ancestors to cope with sizes and times outside the narrow range of everyday practicality, so our brains never evolved the capacity to imagine them. It is probably significant that our own body size of a few feet is roughly in the middle of the range of sizes we can imagine. And our own lifetime of a few decades is roughly in the middle of the range of times we can imagine. "

Richard Dawkins , The Blind Watchmaker: Why the Evidence of Evolution Reveals a Universe Without Design