Nobody Will Deny That There Is At

I Had Very, Very Little Training In Taking An Exam To Determine A Scientist's Life In France.

I Didn't Feel Comfortable At First With Pure Mathematics, Or As A Professor Of Pure Mathematics. I Wanted To Do A Little Bit Of Everything And Explore The World.

Clouds Are Not Spheres, Mountains Are Not Cones, Coastlines Are Not Circles, And Bark Is Not Smooth, Nor Does Lightning Travel In A Straight Line.

Regular Geometry, The Geometry Of Euclid, Is Concerned With Shapes Which Are Smooth, Except Perhaps For Corners And Lines, Special Lines Which Are Singularities, But Some Shapes In Nature Are So Complicated That They Are Equally Complicated At The Big Scale And Come Closer And Closer And They Don't Become Any Less Complicated.

Everything Is Roughness, Except For The Circles. How Many Circles Are There In Nature? Very, Very Few. The Straight Lines. Very Shapes Are Very, Very Smooth. But Geometry Had Laid Them Aside Because They Were Too Complicated.