All my canvases I paint after sketches. (translation from original Dutch, Fons Heijnsbroek, 2018)
Notes from Wikiquote
short undated quote of Mauve, as cited in: 'Zó Hollands - Het Hollandse landschap in de Nederlandse kunst sinds 1850', Antoon Erftemeijer; Frans Hals museum | De Hallen, Haarlem 2011, p. 31