To understand the full meaning of the word " hacker," it helps to examine the word's etymology over the years.

No pains or expense have been spared in preparing the present work for the press.

A Treatise on Painting by da Vinci Leonardo is part of the HackerNoon Books Series. Read this book online for free on HackerNoon!

I who profess never to give sanction to things of my profession which I know to be ill done and ill said.”

The head of a young man armed, in the same collection, very graceful, but inferior to the St. Catherine.

Accustom yourself to hold a plummet in your hand, that you may judge of the bearing of the parts.

Those which relax cease to appear in proportion as the others pull strongly and become apparent.

A man never ascends or descends, nor walks at all in any direction, without raising the heel of the back foot.

After that, trace upon paper what you have drawn on the glass, which tracing you may paint at pleasure, observing the aerial perspective.

The most remote will only be shading their eyes with their hands, as if hurt by the too great glare.