The Arithmetical Symbols Are Written Diagrams And

One Must Be Able To Say At All Times--instead Of Points, Straight Lines, And Planes--tables, Chairs, And Beer Mugs

Mathematical Science Is In My Opinion An Indivisible Whole, An Organism Whose Vitality Is Conditioned Upon The Connection Of Its Parts.

Geometry, Like Arithmetic, Requires For Its Logical Development Only A Small Number Of Simple, Fundamental Principles. These Fundamental Principles Are Called The Axioms Of Geometry.

The Arithmetical Symbols Are Written Diagrams And The Geometrical Figures Are Graphic Formulas.

We Do Not Master A Scientific Theory Until We Have Shelled And Completely Prised Free Its Mathematical Kernel.