Life and mind are continuously in conflict with each other. I want happiness, security. I won't reach that by considerations of my mind; on the contrary they will lead to a certain despair of the inner person. Not what he thinks engages the artist, but what he feels.

Letter to H.P. Bremmer, 17-11-1930, City Archive The Hague, as quoted in Bram van Velde, A Tribute, Municipal Museum De Lakenhal Leiden, Municipal Museum Schiedam, Museum de Wieger, Deurne 1994 (English translation: Charlotte Burgmans)