Beatrice Wood was an American artist and studio potter involved in the Avant Garde movement in the United States; she founded The Blind Man magazine in New York City with French artist Marcel Duchamp and writer Henri-Pierre Roché in 1917. source
One thing that being a scientist has taught me is that you can never be certain about anything. You never know the truth. You can only approach it and hope to get a bit nearer to it each time. You iterate towards the truth. You don't know it.