A tree nowhere offers a straight line or a regular curve, but who doubts that root, trunk, boughs, and leaves embody geometry?
Descriptive geometry has two objects: the first is to establish methods to represent on drawing paper which has only two dimensions,-namely, length and width,-all solids of nature which have three dimensions,-length, width, and depth,-provided, however, that these solids are capable of rigorous definition. The second object is to furnish means to recognize accordingly an exact description of the forms of solids and to derive thereby all truths which result from their forms and their respective positions.
The usual struggle squeezing my bloated Citroën, absurdly named “Picasso,” in or out of any old Italian town. I should be taking a year over this and doing it on a donkey. Eventually found the road to the church of the Madonna of San Biagio, a foursquare temple sitting all alone in the plain. Sangallo's fantasy of the Doric order in honey-colored sandstone, with shell-niches, rosettes, oculi under heavy entablatures. Any one ignorant of geometry scarcely dare enter this shrine to number, measure, and weight. So clean and crisp I could eat it for breakfast.
It [ non-Euclidean geometry ] would be ranked among the most famous achievements of the entire [nineteenth] century, but up to 1860 the interest was rather slight.
Music is the language of God. God's language, music, is not like mathematics or geometry. It is a language of love. If we love music, that is enough.
All the standard equations of mathematical physics can be separated and solved in Kerr geometry.
Whoever thinks algebra is a trick in obtaining unknowns has thought it in vain. No attention should be paid to the fact that algebra and geometry are different in appearance. Algebras (jabbre and maqabeleh) are geometric facts which are proved by propositions five and six of Book two of Elements.
We find in the history of ideas mutations which do not seem to correspond to any obvious need, and at first sight appear as mere playful whimsies such as Apollonius' work on conic sections, or the non-Euclidean geometries, whose practical value became apparent only later.
[Not enough is known about solid geometry] and for two reasons: in the first place, no government places value on it; this leads to a lack of energy in the pursuit of it, and it is difficult. In the second place, students cannot learn it unless they have a teacher. But then a teacher can hardly be found.
In the morning a man walks with his whole body; in the evening, only with his legs. RALPH WALDO EMERSON, Journals and Miscellaneous Notebooks Greek architecture is the perfect flowering of geometry.
I can't stop biting my nails. It's a bad habit of mine. I like anything to do with math and numbers. I know a lot of people don't like geometry, but for me it's fun.
I'd been doing projects outdoors for the public. I made pigeons eat geometry by putting bread out in rhomboids and triangles. I don't know if this activity made sense, but the work was available.
Gregorian chant, Romanesque architecture, the Iliad , the invention of geometry were not, for the people through whom they were brought into being and made available to us, occasions for the manifestation of personality.
Life is merely a fracas on an unmapped terrain, and the universe a geometry stricken with epilepsy.
A musical audience is at best uninspiring, at worst definitely drab. ... Respectability hangs like a pall over the orchestra and the boxes; a sort of sterile sobriety ill-fitted to the passionate geometry of music.
Either one or the other [analysis or synthesis] may be direct or indirect. The direct procedure is when the point of departure is known-direct synthesis in the elements of geometry. By combining at random simple truths with each other, more complicated ones are deduced from them. This is the method of discovery, the special method of inventions, contrary to popular opinion.
For it is the duty of an astronomer to compose the history of the celestial motions or hypotheses about them. Since he cannot in any certain way attain to the true causes, he will adopt whatever suppositions enable the motions to be computed correctly from the principles of geometry for the future as well as for the past.
We do not live in a time when knowledge can be extended along a pathway smooth and free from obstacles, as at the time of the discovery of the infinitesimal calculus, and in a measure also when in the development of projective geometry obstacles were suddenly removed which, having hemmed progress for a long time, permitted a stream of investigators to pour in upon virgin soil. There is no longer any browsing along the beaten paths; and into the primeval forest only those may venture who are equipped with the sharpest tools.
As astronomy is the daughter of idleness, geometry is the daughter of property.
I then began to study arithmetical questions without any great apparent result, and without suspecting that they could have the least connexion with my previous researches. Disgusted at my want of success, I went away to spend a few days at the seaside, and thought of entirely different things. One day, as I was walking on the cliff, the idea came to me, again with the same characteristics of conciseness, suddenness, and immediate certainty, that arithmetical transformations of indefinite ternary quadratic forms are identical with those of non-Euclidian geometry.
Aspiring to these wide generalizations, the analysis of quadratic functions soars to a pitch from whence it may look proudly down on the feeble and vain attempts of geometry proper to rise to its level or to emulate it in its flights.
Fortunate are the nations that can build wooden houses. Because wood breathes, transforms, deteriorates, like us. It is also important to have flowers and plants where we live, because they breathe, too. Contemplating a flower for three seconds can be a captivating solitary journey back to original geometry, which is always revitalizing.
The method of Fluxions is the general key by help whereof the modern mathematicians unlock the secrets of Geometry, and consequently of Nature.
Truth is disputable; not taste: what exists in the nature of things is the standard of our judgement; what each man feels within himself is the standard of sentiment. Propositions in geometry may be proved, systems in physics may be controverted; but the harmony of verse, the tenderness of passion, the brilliancy of wit, must give immediate pleasure. No man reasons concerning another's beauty; but frequently concerning the justice or injustice of his actions.
Geometry alone is not enough to portray human desires, expressions, aspirations, joys. We need more.
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