"many free images of Kruyder's paintings in the Rijksmuseum, Amsterdam"

“.. will now work on the painting 'The bitch in Heat', I have studies of the subject for a long time already. Actually it can better be called 'The fight therefore', because in the composition in the background three large dogs have a furious fight together.”

“At the moment we are back in L. in Houthem St. Gerlach, already a fortnight. I collected already a lot here. We left when it was not yet spring - just to see everything coming out against those beautiful hilly fields. That Country of Bemelen is so beautiful, I have made jottings . Before that I made a very important drawing. A young Limburger .. ..especially from that subject I wanted to make a deeper psychological study now. I am not quite ready for that yet, but that is a nice goal of my trip, to look closely into that matter once more.”

“I think I am a tough mountaineer who, when he has the top in sight, is bounced off again , but some day I will succeed.. .I must do it, there is no other way for me. It is always such a pity that Jo is cracked up so quickly, otherwise I didn't mind very much.”

“Now I am not a supporter of a contract. But in these circumstances that I have now ended up in - temporarily I hope - it would be very welcome. Then at least I can work quietly in this misery just at the moment when I almost reached the top of the mountain. You will receive all my new works for that, and if necessary.. ..a choice from my older work.”

“.. coloration, monumentallity and bewildering deformations of human physical and psychic properties..”

“Only now I see what I am capable of and I don't understand that I have been able to make this canvas in my small front room .”