"Elementary may be deep"
― Tosio Kato
“Where there is matter, there is Geometry.”
― Johannes Kepler
"Arithmetic has for its object the properties of number in the abstract. In Algebra, viewed as a science of operations, order is the predominating idea. The business of Geometry is with the evolution of the properties of space, or of bodies viewed as existing in space."
― James J. Sylvester