Art is either plagarism or revolution. Paul Gauguin

art is your own but you can take other peoples ideas and use them for inspiration 

My example of repeation

An artist never really finishes his work, he merely abandons it

nothing is ever finished if you really work on it as much as you can

A man paints with his brains and not with his hands.
-Michelangelo

I think it means that people think about what they are painting and what it means when they are painting.