He was the embodiment of what people call a "Renaissance Man," who had considerable skills in many different areas.
Here's what Wikipedia has to say about Da Vinci --
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Leonardo di ser Piero da Vinci ... (April 15, 1452 – May 2, 1519, Old Style) was an Italian Renaissance polymath: painter, sculptor, architect, musician, scientist, mathematician, engineer, inventor, anatomist, geologist, cartographer, botanist, and writer. His genius, perhaps more than that of any other figure, epitomized the Renaissance humanist ideal. Leonardo has often been described as the archetype of the Renaissance Man, a man of "unquenchable curiosity" and "feverishly inventive imagination".[1] He is widely considered to be one of the greatest painters of all time and perhaps the most diversely talented person ever to have lived.[2]
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Not only did Da Vinci have a variety of artistic and technical achievements that were far ahead of his contemporaries, but he also had some ideas about the morals of his time regarding killing animals for food:
“I have learned from an early age to abjured the use of meat, and the time will come when men such as I will look upon the murder of animals as they now look upon the murder of men”
Source: http://thinkexist.com/quotation/i_have_learned_from_an_early_age_to_abjured_the/170730.html