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.

I have always felt it is my destiny to build a machine that would allow man to fly.

The limiting surface of one thing is the beginning of another.

Instrumental or mechanical science is the noblest and above all others, the most useful.

once you have tasted the taste of sky, you will forever look up

The cat is nature's masterpiece.

The painter will produce pictures of little merit if he takes the works of others as his standard.