Isidore of Seville (ca 600)
Take from all things
their number and all
shall perish.
Ibn Khaldun (1332-1406)
Geometry enlightens the intellect and sets one's mind right. All of 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.
The Muqaddimah. An Introduction to History.
Igor Stravinsky
I have learned
throughout my life
as a composer
chiefly through my
mistakes and
pursuits of false
assumptions, not by
my exposure to
founts of wisdom and
knowledge.