Geometry... being a part of mathematics, mother of all knowledge, is also the mother of drawing, which is the father of all the arts.,


The Romance of Leonardo da Vinci: The Forerunner, Chapter XI (p. 312), G.R Putnam's Sons. 1903


Geometry... being a part of mathematics, mother of all knowledge, is also the mother of drawing, which is the father of all the arts.,

Geometry... being a part of mathematics, mother of all knowledge, is also the mother of drawing, which is the father of all the arts.,

Geometry... being a part of mathematics, mother of all knowledge, is also the mother of drawing, which is the father of all the arts.,

Geometry... being a part of mathematics, mother of all knowledge, is also the mother of drawing, which is the father of all the arts.,