Scientist, painter, mechanical engineer, sculptor, thinker, city planner, storyteller, musician, architect—Leonardo da Vinci, builder of the first flying machine, was one of the great universal geniuses of Western civilization. His voluminous notebooks, the great storehouse of his theories and discoveries, are presented here in 1566 extracts that reveal the full range of Leonardo's versatile interest: all the important writings on painting, sculpture, architecture, anatomy, astronomy, geography, topography, and other fields are included, in both Italian and English, with 186 plates of manuscript pages and many other drawings reproduced in facsimile size. The first volume, which contains all of Leonardo's writings on aspects of painting, includes discussions of such basic scientific areas as the structure of the eye and vision, perspective, the science of light and shade, the perspective of disappearance, theory of color, perspective of color, proportions and movements of the human figure, botany for painters, and the elements of landscape painting. A section on the practice of painting includes moral precepts for painters and writings on composition, materials, and the philosophy of art. The second volume contains writings on sculpture, architecture (plans for towns, streets, and canals, churches, palaces, castles, and villas, theoretical writings on arches, domes, fissures, etc.), zoology, physiology (including his amazingly accurate theories of blood circulation), medicine, astronomy, geography (including has famous writings and drawings on the movement of water), topography (observations in Italy, France, and other areas), naval warfare, swimming, theory of flying machines, mining, music, and other topics. A selection of philosophical maxims, morals, polemics, fables, jests, studies in the lives and habits of animals, tales, and prophecies display Leonardo's abilities as a writer and scholar. The second volume also contains some letters, personal records, inventories, and accounts, and concludes with Leonardo's will. The drawings include sketches and studies for some of Leonardo's greatest works of art — The Last Supper, the lost Battle of Anghiari, The Virgin of the Rocks, and the destroyed Sforza monument.
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It was on April 15, 1452, that Leonardo was born in the town of Vinci, Republic of Florence, in what is now in Italy, the illegitimate son of a notary and a barmaid. It is from his birthplace that he is known as Leonardo da Vinci. Leonardo seemed to master every subject to which he turned his attention: he was a painter, draftsman, sculptor, architect, and engineer, wrote poetry and stories: the prototype Renaissance man! His Last Supper (1495-97) and Mona Lisa (La Gioconda, 1503-06) are among the most popular paintings from the Renaissance. He and his rival Michelangelo did great service to the medical arts by accurate paintings of dissections, which were only occasionally allowed by the Church. Yet, his artistry appeared to be an afterthought, as he frequently left his works unfinished, and only about fifteen of his paintings survive. His notebooks reveal that he was centuries ahead of his time in mechanics and physic, fortifications, bridges, weapons, and river diversions to flood the enemy, which aided Italian city-states in their many wars. Leonardo was an early evolutionist regarding fossils. Through his careful observations he noted that “if the shells had been carried by the muddy deluge they would have been mixed up, and separated from each other amidst the mud, and not in regular steps and layers—as we see them now in our time.” Leonardo reasoned that what is now dry land, where these aquatic fossils were found, must once have been covered by seawater. He was for a short time accused of homosexuality: there is no evidence Leonardo had any sexual interest in women. As he wrote in his notebooks, “The act of procreation and anything that has any relation to it is so disgusting that human beings would soon die out if there were no pretty faces and sensuous dispositions.” And what of his religion? It is significant that at the end of his life he felt he had much spiritual negligence to atone for. His first biographer, Giorgio Vasari, wrote in 1550: "Finally, …feeling himself near to death, [he] asked to have himself diligently informed of the teaching of the Catholic faith, and of the good way and holy Christian religion; and then, with many moans, he confessed and was penitent; and … was pleased to take devoutly the most holy Sacrament, out of his bed. The King, who was wont often and lovingly to visit him, then came into the room; wherefore he, out of reverence … showed withal how much he had offended God and mankind in not having worked at his art as he should have done." There was much skepticism in Renaissance Italy at the time, and Leonardo was an intellectual genius, not just an artistic genius. While there was great intellectual freedom during the Italian Renaissance, there were limits as long as the Dominicans, the “Hounds of the Lord,” were active. This semblance of a deathbed conversion, by so critical a thinker and so great a genius as Leonardo, who would have nothing to lose by professing piety all his life, can only mean that during his prime years he was a secret freethinker. Leonardo died quietly on the 2 of May, 1519, a few weeks following his 67th birthday.
