“A straight line is said to have been cut in extreme and mean ratio when, as the whole line is to the greater segment, so is the greater to the lesser.” ScienceMathematicsGeometryEuclidGolden RatioHistory Of MathematicsEuclidean Geometry Book:Euclid's Elements Source: Euclid's Elements
“... I left Caen, where I was living, to go on a geological excursion under the auspices of the School of Mines. The incidents of the travel made me forget my mathematical work. Having reached Coutances, we entered an omnibus to go to some place or other. At the moment when I put my foot on the step, the idea came to me, without anything in my former thoughts seeming to have paved the way for it, that the transformations I had used to define the Fuchsian functions were identical with those of non-Euclidean geometry. I did not verify the idea; I should not have had time, as upon taking my seat in the omnibus, I went on with a conversation already commenced, but I felt a perfect certainty. On my return to Caen, for convenience sake, I verified the result at my leisure.” ScienceWorkTravelMathematicsMathGeometryEuclidEuclidean GeometryFuchsian FunctionsGeological Author:Henri PoincarĂ©
“There have been and still are geometricians and philosophers, and even some of the most distinguished, who doubt whether the whole universe, or to speak more widely the whole of existence, was only created in Euclid's geometry; they even dare to dream that two parallel lines, which according to Euclid can never meet on earth, may meet somewhere in infinity. I have come to the conclusion that, since I can't understand even that, I can't expect to understand about God. I acknowledge humbly that I have no faculty for settling such questions, I have a Euclidean earthly mind, and how could I solve problems that are not of this world? And I advise you never to think about it either, my dear Alyosha, especially about God, whether He exists or not. All such questions are utterly inappropriate for a mind created with an idea of only three dimensions.” GodEuclidean GeometryThe Limitedness Of Human Mind Book:The Brothers Karamazov Source: The Brothers Karamazov
“For authors, the shortest distance between two points is a straight line only if you are writing the letter I.” WritingDepthAphorismsAuthorshipArgumentationEuclidean Geometry Author:Michael A. Arnzen