--- title: "1 Skull Collapsed Quotes By David Kahn" description: "1 Skull Collapsed quotes by David Kahn. Plus more from David Kahn and more Skull Collapsed sayings from other authors." image: "https://sms4smile.com/quotes/i/d71/david-kahn-13896_hope_the-solution-had-taken-a-terrific-toll-t_2219879.jpg" --- > [“The solution had taken a terrific toll. The restless turning of the mind tormented by a puzzle, the preoccupation at meals, the insomnia, the sudden wakening at midnight, the pressure to succeed because failure could have national consequences, the despair…](https://sms4smile.com/quotes/david-kahn/the-solution-had-taken-a-terrific-toll-the-restless-turning-of-the/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) [Image](https://sms4smile.com/quotes/i/d71/david-kahn-13896_hope_the-solution-had-taken-a-terrific-toll-t_2219879.jpg) ## More by David Kahn > [“Hildegard von Bingen, an 11th-century nun who saw apocalyptic visions and was later canonized, had a cipher alphabet which she claimed came to her…](https://sms4smile.com/quotes/david-kahn/hildegard-von-bingen-an-11th-century-nun-who-saw-apocalyptic-visions/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“the most famous of all those who had an acquaintance with cryptology in the Middle Ages was an English customs official, amateur astronomer, and…](https://sms4smile.com/quotes/david-kahn/the-most-famous-of-all-those-who-had-an-acquaintance-with-cryptology/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“The task of the cryptanalysts consisted primarily of reconstructing the wiring and switches of the coding wheels—a task made more burdensome by the daily…](https://sms4smile.com/quotes/david-kahn/the-task-of-the-cryptanalysts-consisted-primarily-of-reconstructing/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“Analyzing the frequency and contacts of letters is the most universal, most basic of cryptanalytic procedures.”](https://sms4smile.com/quotes/david-kahn/analyzing-the-frequency-and-contacts-of-letters-is-the-most-universal/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“General Joseph O. Mauborgne, who became Chief Signal Officer in October, 1937. Mauborgne had long been interested in cryptology. In 1914, as a young…](https://sms4smile.com/quotes/david-kahn/general-joseph-o-mauborgne-who-became-chief-signal-officer-in-october/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“The only writer of the Middle Ages to describe cryptography instead of just using it was Roger Bacon, the English monk of startlingly modern…](https://sms4smile.com/quotes/david-kahn/the-only-writer-of-the-middle-ages-to-describe-cryptography-instead/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“Cryptology served magical purposes frequently throughout the Middle Ages, and even in the Renaissance was still disguising important parts of alchemical formulas.”](https://sms4smile.com/quotes/david-kahn/cryptology-served-magical-purposes-frequently-throughout-the-middle/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“Ibn ad-Duraihim, according to Qalqashandi, gave seven systems of cipher:”](https://sms4smile.com/quotes/david-kahn/ibn-ad-duraihim-according-to-qalqashandi-gave-seven-systems-of-cipher/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“The technique was at least moderately well known, for Ibn Khaldūn wrote in The Muqaddimah: “Occasionally, skillful secretaries, though not the first to invent…](https://sms4smile.com/quotes/david-kahn/the-technique-was-at-least-moderately-well-known-for-ibn-khald-n/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“Cryptology was born among the Arabs. They were the first to discover and write down the methods of cryptanalysis. The people that exploded out…](https://sms4smile.com/quotes/david-kahn/cryptology-was-born-among-the-arabs-they-were-the-first-to-discover/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“Another steganographic system was still in use in the 20th century: Aeneas suggested pricking holes in a book or other document above or below…](https://sms4smile.com/quotes/david-kahn/another-steganographic-system-was-still-in-use-in-the-20th-century/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“Also of great importance in the discovery of linguistic phenomena that led to cryptanalysis was the development of lexicography.”](https://sms4smile.com/quotes/david-kahn/also-of-great-importance-in-the-discovery-of-linguistic-phenomena/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“The world owes its first instructional text on communications security to the Greeks. It appeared as an entire chapter in one of the earliest…](https://sms4smile.com/quotes/david-kahn/the-world-owes-its-first-instructional-text-on-communications/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“His method resembles George Bernard Shaw’s way of using the /f/ sound of GH in “tough,” the /i/ sound of o in “women,” and…](https://sms4smile.com/quotes/david-kahn/his-method-resembles-george-bernard-shaw-s-way-of-using-the-f-sound/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) > [“Much of the history of cryptology of this time is a patchwork, a crazy quilt of unrelated items, sprouting, flourishing, withering. Only toward the…](https://sms4smile.com/quotes/david-kahn/much-of-the-history-of-cryptology-of-this-time-is-a-patchwork-a-crazy/) [David Kahn](https://sms4smile.com/quotes/author/david-kahn/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "ItemList", "@id": "https://sms4smile.com/quotes/about/skull-collapsed/david-kahn/#itemlist", "name": "1 Skull Collapsed Quotes By David Kahn", "numberOfItems": 1, "itemListElement": [ { "@type": "ListItem", "position": 1, "item": { "@type": "Quotation", "text": "“The solution had taken a terrific toll. The restless turning of the mind tormented by a puzzle, the preoccupation at meals, the insomnia, the sudden wakening at midnight, the pressure to succeed because failure could have national consequences, the despair of the long weeks when the problem seemed insoluble, the repeated dashings of uplifted hopes, the mental shocks, the tension and the frustration and the urgency and the secrecy all converged and hammered furiously upon his skull. He collapsed in December.”", "creator": { "@type": "Person", "name": "David Kahn" }, "url": "https://sms4smile.com/quotes/david-kahn/the-solution-had-taken-a-terrific-toll-the-restless-turning-of-the/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/d71/david-kahn-13896_hope_the-solution-had-taken-a-terrific-toll-t_2219879.jpg", "contentUrl": "https://sms4smile.com/quotes/i/d71/david-kahn-13896_hope_the-solution-had-taken-a-terrific-toll-t_2219879.jpg", "url": "https://sms4smile.com/quotes/i/d71/david-kahn-13896_hope_the-solution-had-taken-a-terrific-toll-t_2219879.jpg", "width": 1080, "height": 1080, "caption": "“The solution had taken a terrific toll. The restless turning of the mind tormented by a puzzle, the…” — David Kahn", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } } ] }, { "@type": "CollectionPage", "@id": "https://sms4smile.com/quotes/about/skull-collapsed/david-kahn/#webpage", "url": "https://sms4smile.com/quotes/about/skull-collapsed/david-kahn/", "name": "Skull Collapsed Quotes by David Kahn", "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "mainEntity": { "@id": "https://sms4smile.com/quotes/about/skull-collapsed/david-kahn/#itemlist" }, "primaryImageOfPage": { "@id": "https://sms4smile.com/quotes/i/d71/david-kahn-13896_hope_the-solution-had-taken-a-terrific-toll-t_2219879.jpg" }, "description": "1 Skull Collapsed quotes by David Kahn. Plus more from David Kahn and more Skull Collapsed sayings from other authors.", "breadcrumb": { "@id": "https://sms4smile.com/quotes/about/skull-collapsed/david-kahn/#breadcrumb" } }, { "@type": "BreadcrumbList", "@id": "https://sms4smile.com/quotes/about/skull-collapsed/david-kahn/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://sms4smile.com/" }, { "@type": "ListItem", "position": 2, "name": "Quotes", "item": "https://sms4smile.com/quotes/" }, { "@type": "ListItem", "position": 3, "name": "Topics", "item": "https://sms4smile.com/quotes/categories/" }, { "@type": "ListItem", "position": 4, "name": "Skull Collapsed", "item": "https://sms4smile.com/quotes/about/skull-collapsed/" }, { "@type": "ListItem", "position": 5, "name": "David Kahn", "item": "https://sms4smile.com/quotes/about/skull-collapsed/david-kahn/" } ] }, { "@type": "WebSite", "@id": "https://sms4smile.com/quotes/#website", "name": "SMS4Smile Quotes", "url": "https://sms4smile.com/quotes/", "publisher": { "@id": "https://sms4smile.com/quotes/#organization" } }, { "@type": "Organization", "@id": "https://sms4smile.com/quotes/#organization", "name": "SMS4Smile Quotes", "url": "https://sms4smile.com/quotes/", "logo": { "@type": "ImageObject", "url": "https://sms4smile.com/quotes/wp-content/themes/sq/assets/icons/icon-512.png", "width": 512, "height": 512 } } ] } ```