Sometimes I photograph without looking through the viewfinder. I have mastered that well enough, it is almost as if I were looking through it.

For me what photographers say about their photos doesn’t have any importance. For me it is just enough to look at the pictures. Many times - for the boring pictures - people have to say so many things about them to show you there is something to them when many times there is nothing.

The maximum, that is what has always interested me.

When I first started to take photographs in Czechoslovakia, I met this old gentleman, this old photographer, who told me a few practical things. One of the things he said was, "Josef, a photographer works on the subject, but the subject works on the photographer."

I am not interested in repetition. I don't want to reach the point from where I wouldn't know how to go further. It's good to set limits for oneself, but there comes a moment when we must destroy what we have constructed.

My photographs are proof of what happened. When I go to Russia, sometimes I meet ex-soldiers... They say, 'We came to liberate you....' I say: 'Listen, I think it was quite different. I saw people being killed.' They say: 'No. We never... no shooting. No. No.' So I can show them my Prague 1968 photographs and say, 'Listen, these are my pictures. I was there.' And they have to believe me.

Sometimes I photograph without looking through the viewfinder. I have mastered that well enough, it is almost as if I were looking through it.