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  • Nov 11, 14

    "There is no difference, from the attacker’s point of view, between gross and tiny errors. Both of them are equally exploitable.
    This lesson is very hard to internalize. In the real world, if you build a bookshelf and forget to tighten one of the screws all the way, it does not burn down your house."

    • There is no difference, from the attacker’s point of view, between gross and tiny errors. Both of them are equally exploitable. In at least three challenges, the mere fact of getting distinguishable error messages was enough to recover the entire message.

        

      This lesson is very hard to internalize. In the real world, if you build a bookshelf and forget to tighten one of the screws all the way, it does not burn down your house

  • Oct 29, 14

    "Never attribute to malice that which is adequately explained by stupidity."
    -Hanlon's razor

    • Never attribute to malice that which is adequately explained by stupidity.
      • -Hanlon's razor

    2 more annotations...

    • forbidden to go east
      • East - towards the US East coast?

    • After a time, I myself was allowed to go into the   dead houses and search for metal.

    23 more annotations...

  • Jun 18, 14

    The sign of intelligence is that you are constantly wondering.

    Idiots are always dead sure about every damn thing they are doing in their life
    - Jaggi Vasudev

  • Nov 13, 13

    My reading of history convinces me that most bad government results from too much government.

    • Bad government results from too much government
  • Dec 10, 11

    1- "Imagination is more important than knowledge."

    2- "Reality is merely an illusion, albeit a very persistent one."

    3- "Weakness of attitude becomes weakness of character."

    4- "Anyone who has never made a mistake has never tried anything new."

    5- "Peace cannot be kept by force. It can only be achieved by understanding."

    6- "We can't solve problems by using the same kind of thinking we used when we created them."

    7- "If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut."

    8- "The important thing is not to stop questioning. Curiosity has its own reason for existing."

  • Dec 08, 11

    What is a Scientific Theory - Stephen W. Hawking

    "In order to talk about the nature of the universe and to discuss questions such as whether it has a beginning or an end, you have to be clear about what a scientific theory is. I shall take the simpleminded view that a theory is just a model of the universe or a restricted part of it, and a set of rules that relate quantities in the model to observations that we make. It exists only in our mind and does not have any other reality (whatever that might mean). A theory is a good theory if it satisfies two requirements: It must accurately describe a large class of observations on the basis of a model that contains only a few arbitrary elements, and it must make definite predictions about the result of future observations. For example, Aristotle's theory that everything was made out of four elements, earth, air, fire and water, was simple enough to qualify, but it did not make any definite predictions. On the other hand, Newton's theory of gravity was based on an even simpler model, in which bodies attracted each other with a force that was proportional to a quantity called their mass and inversely proportional to the square of the distance between them. Yet it predicts the motions of the sun, the moon, and the planets to a high degree of accuracy.

    Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory. On the other hand, you can disprove a theory by finding even a single observation that disagrees with the predictions of the theory. As philosopher of science KarlPopper has emphasized, a good theory is characterized by the fact that it makes a large number of predictions that could in principle be disproved or falsified by observation. Each time new experiments are observed to agree with the predictions the theory survives, and our confidence in it is increased; but if ever a new observation is found to disagree, we have to abandon or modify the theory. At least that is what is supposed to happen, but you can always question the competence of the person who carried out the observation."

    Stephen W. Hawking, in "A Brief History of Time", p. 11

    • you have to be clear about what a scientific theory is
    • a theory is just a model of the universe or a restricted part of it, and a set of rules that relate quantities in the model to observations that we make.

    7 more annotations...

  • May 16, 11

    "Each morning when I awake, I experience again a supreme pleasure: that of being Salvador Dali."
    Take pleasure in being yourself!!

    • "Each morning when I awake, I experience again a supreme pleasure: that of being Salvador Dali."
    • "So little of what could happen does happen."
  • May 16, 11

    A Japanese View of the Palestinians

    An interesting questionnaire for Palestinian Advocates By Yashiko Sagamori

    If you are so sure that " Palestine , the country, goes back through most of recorded history," I expect you to be able to answer a few basic questions about that country of Palestine :

  • May 16, 11

    We are what we repeatedly do. Excellence, then, is not an act, but a habit

    • “We are what we repeatedly do. Excellence, then, is not an act, but a habit.”
  • Mar 31, 11

    Rabbi Sholom Dovber of Lubavitch (quoted by his son, Rabbi Yosef Yitzchak Schneersohn, at the Leningrad train station upon being sent to exile by the Soviet regime in 1927)

    • This all the nations of the world must know: only our bodies were sent into exile and subjugated to alien rule; our souls were not given over into captivity and foreign rule... In any matter affecting the Jewish religion, the Torah, and its mitzvot and customs, we are not subject to the dictates of any power

            – Rabbi Sholom DovBer of Lubavitche (quoted by his son, Rabbi Yosef Yitzchak Schneersohn, at the Leningrad train station upon being sent to exile by the Soviet regime in 1927)
    • "Those who would give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety."
    • If you set up the false dichotomy, of course people will choose security over privacy -- especially if you scare them first. But it's still a false dichotomy. There is no security without privacy. And liberty requires both security and privacy. The famous quote attributed to Benjamin Franklin reads: "Those who would give up essential liberty to purchase a little temporary safety, deserve neither liberty nor safety." It's also true that those who would give up privacy for security are likely to end up with neither.
      - joshengle on 2008-03-04
    • "Do what you feel in your heart to be right- for you'll be criticized anyway. You'll be damned if you do, and damned if you don't."
    • "Do what you feel in your heart to be right- for
      you'll be criticized anyway. You'll be damned if you do, and damned if
      you don't."
        --  Eleanor Roosevelt
      - joshengle on 2008-02-28
    • "music is, to me, proof of the existence of God. It is so extraordinarily full of magic and in tough times of my life I can listen to music and it makes such a difference"
    •  "Human nature is not a machine to be built after a model, and set to do exactly the work prescribed for it, but a tree, which requires to grow and develop itself on all sides, according to the tendency of the inward forces which make it a living thing." 

       "Such are the differences among human beings in their sources of pleasure, their susceptibilities of pain, and the operation on them of different physical and moral agencies, that unless there is a corresponding diversity in their modes of life, they neither obtain their fair share of happiness, nor grow up to the mental, moral, and aesthetic stature of which their nature is capable." 

       John Stuart Mill, On Liberty (1859)

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