the earth, not the sun moving up or down in relation to the earth. This illusion caused ancients to falsely believe in a geocentric universe rather than the currently accepted heliocentric view. Hocking's criterion was corroborated in the mid-20th century by Richard Feynman, a physicist who won the Nobel Prize. Feynman states that anything described as true "... could never be proved right, because tomorrow's experiment might succeed in proving wrong what you thought was right ..." and, "... if it disagrees with experiment, it is wrong." Finally, Sahakian and Sahakian note inadequacies and limited application to all of the other criteria of truth they present, but they do not denigrate negative pragmatism. To find an inadequacy in any criterion is to invoke negative pragmatism. To denote a failure in any criterion is to show how it "disagrees with experiment" (Feynman) and/or "does not work" (Hocking). By this means, they use negative pragmatism as the de facto criterion by which all other criteria are judged. Marriage and family Hocking married Agnes O'Reilly on June 28, 1905. She was the Irish-American daughter of the journalist and poet John Boyle O'Reilly and his wife Mary Murphy, also a journalist. They had three children: Richard (1906–2001), Hester (1909–1998) and Joan (1911–2000). After they returned to Cambridge, Agnes Hocking started an open-air school at their home, which she developed as the Shady Hill School. It continues near Harvard Square. Richard became a professor of philosophy and his daughter Hester became affiliated with the St Augustine movement for civil rights and in April 1964 Hester along with 3 other woman (including Mary Parkman Peabody the mother of then Massachusetts governor Endicott Peabody) were arrested for protesting in a segregated lunch bar in the town, the event made front-page news at the time. Joan's husband Edward A. Kracke Jr. was a historian of China. Final years and death In 1955 Hocking's wife of 50 years Agnes died at the age of 78, Hocking published his final book The Coming World Civilisation in 1956. On 12 June 1966, Hocking died at his farm in Madison, New Hampshire aged 92. He was survived by his three children and 8 grandchildren. Cultural references William Hocking's life, work, his predecessors, his colleagues, and especially his surviving personal library, West Wind, is the inspiration for John Kaag's American Philosophy: A Love Story. Selected works 1912, The Meaning of God in Human