My crew [on "Fitzcarraldo" filming] actually said, "We have filmed it from outside on the rocks of the shore. We should be on board [the ship]," and I said it's dangerous, I only do it if you cinematographer Thomas Mauch and you actor [Klaus] Kinski decide on your own.

I think psychology and self-reflection is one of the major catastrophes of the twentieth century.

Some of the most important caves, like Lascaux in the Dordogne region in France, have had to be closed down. There had been too many people allowed in, and they left a mold on the walls that is spreading and which can't really be stopped.

I have learned a lot through defeats, and, until today, it's - I'm still haunted by defeats, and they do happen. Sometimes, a film of mine is rejected. And how do you deal with it? And you have to learn how to deal with it and survive anyway.

Your film is like your children. You might want a child with certain qualities, but you are never going to get the exact specification right. The film has a privilege to live its own life and develop its own character. To suppress this is dangerous. It is an approach that works the other way too: sometimes the footage has amazing qualities that you did not expect.

If you do not have an absolutely clear vision of something, where you can follow the light to the end of the tunnel, then it doesn't matter whether you're bold or cowardly, or whether you're stupid or intelligent. Doesn't get you anywhere.

The danger is to stupidly believe that depicting facts gives us much insight. If facts were the only thing that counted, the telephone directory would be the book of books.