"No more church! We want the natural world."
That would be a slogan for a public manifestation at the renascence period.
Like many of his peers art was one of many skills that Leonardo da Vinci had.
However he was not considered as good at that time.
"He used to practice 14 sciences. He used to sleep 2 hours every day, separated in quarters. A left-handed dyslexic, he tried to paint with both of his hands. He was a loner, but also adopted a child which he raised with extra care. He was weird, and used to destroy most of his work." (read more here)