The ancient geometricians had studied the ellipse: they had noticed its foci; they were acquainted with its geometrical relations; and thus Kepler was familiar with the ellipse at the time when he undertook his celebrated researches on the movements of the planets.
"The Story of the Heavens"
Robert Stawell Ball
Like most geometricians, chemists, mathematicians, and great naturalists, he had subjected religion to reason; he recognized a problem in it as insoluble as the squaring of the circle.
"The Lesser Bourgeoisie"
Honore de Balzac
Yet anybody who has the least acquaintance with geometry will not deny that such a conception of the science is in flat contradiction to the ordinary language of geometricians.
"Plato's Republic"
Plato