There is no doubt that the efficiency of the Works at Bournville is assisted by the Suggestion Scheme, and it has been found that the good accomplished, is not only in the pecuniary value to the Firm or to the suggestor, but also in the development of the mental and creative power, which makes both men and girls more efficient and valuable workers, and fosters an intelligent independence.

p. 16; Cited in: Chris Smith, John Child, Michael Rowlinson. Reshaping Work: The Cadbury Experience. Cambridge University Press, 1990. p. 64 - Experiments in industrial organization (1912)