My work has no theme. I don't care if my photographs get published, and I have no interest in the news. But the invasion of Prague was not news, it was my life.

If I am dissatisfied, it's simply because good photos are few and far between. A good photo is a miracle.

The biggest lesson in photography is that from negative we make a positive

I photograph only something that has to do with me, and I never did anything that I did not want to do. I do not do editorial and I never do advertising. No, my freedom is something I do not give away easily.

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.

I don't pretend to be an intellectual or a philosopher. I just look.