Learn the rules like a pro, so you can break them like an artist. - Pablo Picasso

Mathematics, trigonometry, chemistry, psychoanalysis, music, and what not have been related to cubism to give it an easier interpretation. All this has been pure literature, not to say nonsense, which brought bad results, blinding people with theories. Cubism has kept itself within the limits and limitations of painting, never pretending to go beyond it.

We have a definite but unknown quantity of experience at our disposal. As soon as the hourglass is turned, the sand will begin to run out and once it starts, it cannot stop until it's all gone.

To me there is no past or future in art. If a work of art cannot live always in the present it must not be considered at all. The art of the Greeks, of the Egyptians, of the great painters who lived in other times, is not an art of the past; perhaps it is more alive today that it ever was.