Il problema della guerra e le vie della pace (The problems of war and the ways of peace)^{[clarification needed]} is a university booklet of philosopher Norberto Bobbio's lessons, first published in 1979.^[1] The lessons are famous for the three images that illustrate the conditions of humans in the era of thermonuclear weapons.

1. An open bottle with a fly flying in it;
2. The net with a fish still alive in it;
3. The maze from which a person tries to escape.

Some people behave like the fly because one day at random they will find the way out. Some behave like the trapped fish: the more they move the more they are entangled. Others behave like those lost in a maze: they try to escape using the faculties of mind.

References[edit]