sentences:  Ruskin's ideas on the preservation of open spaces and the conservation of historic buildings and places inspired his friends Octavia Hill and Hardwicke Rawnsley to help found the National Trust.Pioneers of town planning such as Thomas Coglan Horsfall and Patrick Geddes called Ruskin an inspiration and invoked his ideas in justification of their own social interventions; likewise the founders of the garden city movement, Ebenezer Howard and Raymond Unwin.Edward Carpenter's community in Millthorpe, Derbyshire was partly inspired by Ruskin, and John Kenworthy's colony at Purleigh, Essex, which was briefly a refuge for the Doukhobors, combined Ruskin's ideas and Tolstoy's.