“ Not that the propositions of geometry are only approximately true, but that they remain absolutely true in regard to that Euclidean space which has been so long regarded as being the physical space of our experience. Arthur Cayley Mathematician
“ In geometric and physical applications, it always turns out that a quantity is characterized not only by its tensor order, but also by symmetry. Hermann Weyl Mathematician
“ The description of right lines and circles, upon which geometry is founded, belongs to mechanics. Geometry does not teach us to draw these lines, but requires them to be drawn. Isaac Newton Physicist