The Medici made me and the Medici destroyed me.

The painter strives and competes with nature.

Every obstacle is destroyed through rigor.

Nature never breaks her own laws.

Any color is more distinctly seen when opposed to its contrary: thus, black on white, blear near yellow, green near red, and so on.

A diamond is just a lump of coal that stuck to its job.

Perspective is nothing more than a rational demonstration applied to the consideration of how objects in front of the eye transmit their image to it, by means of a pyramid of lines. The Pyramid is the name I apply to the lines which, starting from the surface and edges of each object, converge from a distance and meet in a single point.