This scholarly article sheds light on the content of the concept of happiness. It suggests that happiness is not a philosophical concept containing any intrinsic moral relevance. It explores the view of happiness as a crucial philosophical issue and also points at less well-known correspondences in modern discourses on happiness. The paper focuses on Descarte’s account of happiness, then on Nietzsche’s, then discusses the results of both analyses and suggests hypotheses about the possible content of happiness. This article brings up other topics such as ethics and emotion and relates these features to happiness. By comparing Descartes’s and Nietzsche’s work, Wienand constructs a concrete and well-rounded argument on what makes people truly happy. The article explores how they “view happiness as a crucial philosophical issue and also point at less well-known correspondences in modern discourses on happiness.”