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In page Oliver Sheldon:

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Although with the passage of time, the Rowntree company was to change and develop in new ways (particularly with new brands and marketing from the 1930s on), and in 1988 was bought by Nestlé, it retained a tradition of good management throughout, in keeping with the philosophy of its founder and those around him.[1] Sheldon explored this in his 1923 book, The Philosophy of Management, which demonstrated his twin concerns for sound business and ethical practice when he stated: "The cost of building the Kingdom of Heaven will not be found in the profit and loss accounts of industry, but in the record of every man's conscientious service."