The world concerns me only in so far as I have a certain debt and duty to it, because I have lived in it for thirty years and owe to it to leave behind some souvenir in the shape of drawings and paintings – not done to please any particular movement, but within which a genuine human sentiment is expressed.

Do you know what makes the prison disappear? Every deep, genuine affection. Being friends, being brothers, loving, that is what opens the prison, with supreme power, by some magic force. Without these one stays dead. But whenever affection is revived, there life revives.

Painting is like having a bad mistress who spends and spends and it's never enough ... I tell myself that even if a tolerable study comes out of it from time to time, it would have been cheaper to buy it from somebody else.

But I always think that the best way to know God is to love many things.

I shouldn't precisely have chosen madness if there had been any choice, but once such a thing has taken hold of you, you can't very well get out of it.

I feel a certain calm. There is safety in the midst of danger. What would life be if we had no courage to attempt anything?

I am not strictly speaking mad, for my mind is absolutely normal in the intervals, and even more so than before. But during the attacks it is terrible - and then I lose consciousness of everything. But that spurs me on to work and to seriousness, as a miner who is always in danger makes haste in what he does.