There is no permanent place in the world for ugly mathematics. Mathematics is the science which draws necessary conclusions. Mathemata mathematicis scribuntur. A marvelous newtrality have these things mathematicall, and also a strange participation between things supernaturall, immortall, intellectuall, simple and indivisible, and things naturall, mortall, sensible, compounded and divisible. Grant a mathematician the least principle, and he will draw from it a consequence which you must also grant him, and from this consequence another.
Geometry enlightens the intellect and sets one's mind right.
All its proofs are very clear and orderly. It is hardly possible for errors to enter into geometrical reasoning, because it is well arranged and orderly. Thus, the mind that constantly applies itself to geometry is not likely to fall into error. In this convenient way, the person who knows geometry acquires intelligence. He who can properly define and divide is to be considered a god.