The only bad studio is the unused one.
It's okay to doubt. It's important to test. The way to discover secrets is to be a student of your own efforts.
Artists with serious aspirations need to be left alone to follow the course of their own imagination.
In painting you cover up your sins and everyone thinks you're naturally talented.
Art is a path on which we honour our world.
I always thought signing was an artist's honour and guarantee of authenticity.