Not everything needs sharp lines. The 15th. century of Leonardo and Columbus and Gutenberg was a  time of invention ,exploration, and the spread of knowledge by new technologies.  In short, it was a time like our own.  That is why we have much to learn from Leonardo.  His ability to combine art, science, technology, the humanities and imagination remains an enduring recipe for creativity.  So, too, is the ease with which he was a bit of a misfit: illegitimate, gay, vegetarian, left-handed, easily  distracted and at times heretical.  Florence flourished in the 15th century because it was comfortable with such people.  Above all, Leonardo’s relentless curiosity and experimentation should remind us of the importance of instilling in both ourselves and our children, not just received knowledge but also a willingness to question  it – to be imaginative and , like talented misfits and rebels in any era, TO THINK DIFFERENT

from the book, Leonardo , by Walter Isaacson 2017