Abstract
The article aims to discuss the suicide conceptions in the following works: Karl Marx’s Peuchet: vom
Selbstmord (with “co-author” Jacques Peuchet), Émile Durkheim’s Le suicide and Sigmund Freud’s Trauer
und melancolie. We can say that throughout the history of philosophy the theme was worked in two
ways: as a moral and as an existential question. Discussions about suicide intensified between the late
eighteenth and early nineteenth century. While many studies have focused on the moral consequences of
suicidal act, other researchers questioned about the nature of the forces that cross the individual to the
point of self-extermination. In their conceptions, Marx, Durkheim and Freud avoided determinism and
refused to associate suicide to the sin notion advocated by the Christian moral philosophy. However,
this article supports the thesis that these three authors continued operating in the “morality axis” and
presented suicide as a moral problem: it is precisely the moral that allows a theoretical enunciation about
suicide and what sets them apart is, much more, a differentiated position in relation to moral than a
radical innovation of the approach.