"What the work of art looks like isn't too important. It has to look like something if it has a physical form. No matter what form it may finally have it must begin with an idea. It is the process of conception and realization with which the artist is concerned."

Next Quote

Clearly the hardest thing for the working artist is to create his own conception and follow it, unafraid of the strictures it imposes, however rigid these may be... I see it as the clearest evidence of genius when an artist follows his conception, his idea, his principle, so unswervingly that he has this truth of his constantly in his control, never letting go of it even for the sake of his own enjoyment of his work.

— Andrei Tarkovsky