There is a book by Goethe mentioned in this movie, it's "Wahlverwandschaften", and its appearance is quite meaningful. Because the movie takes a look on human loves and lives that is quite similar to older Goethe's fatalistic world-view in his novel, very far from hope and idealisms. Strength (Moreau's character) and Weakness (Jim) are equal forces of nature, and both conduct us to death. The stoic attitude (Jules) is resignation and, seen this way, it is "weakness" too, but, on the other hand, it seems to be the STRONGEST way, because it means survival. JULES ET JIM, both in its content and in its aesthetics, has an air of antique tragedies, but - and this is more like the German novel - without complain, without crying. That's why it leaves you so "unsatisfied", and that's why it's still disturbing, even today.