"Imagination is perhaps the most decisive characteristic of mankind. My dream is the imagination of space – to change the optical impression of the world of objects by a transcendental arithmetic progression of the inner being. That is the precept. In principal any alteration of the object is allowed which has a sufficiently strong creative power behind it. Whether such alteration causes excitement or boredom in the spectator is for you to decide."

“The individual representation of the object, treated sympathetically or anti-pathetically, is highly necessary and is an enrichment to the world in form. The elimination of the human relationship causes the vacuum which makes all of us suffer in various degrees – an individual alteration of the details of the object represented is necessary in order to display on the canvas the whole physicals reality.”

“I am working here on my last big triptych, which will be a tremendous story, and which gives me a more intense life and exhilaration. My God, life is worth living!”

“Learn by heart the forms to be found in nature, so that you can use them like the notes in a musical composition. That is what these forms are for. Nature is a marvelous chaos, and it is our job and our duty to bring order into that chaos and – to perfect it.”

“Thick rumors of imminent peace are in the air.. .Big spectacle with six or seven British tanks. In the afternoon, they played war once more at the Palaisplein and at the Rokin .”

“It is, of course, a luxury to create art and, on top of this, to insist on expressing one's own artistic opinion. Nothing is more luxurious than this. It is a game and a good game, at least for me; one of the few games which make life, difficult and depressing as it is sometimes, a little more interesting.”

“Well - not quite yet - green police still driving around with machine guns, etc. Nevertheless big peace party with warning by Eisenhower. - Walked around in the city , much drunkenness..”