Between 1644 and 1646, Elisabeth of Bohemia and René Descartes discussed passions and morality in their correspondence. On this occasion, Elisabeth of Bohemia presented a critique of Cartesian morality and its applications to the preservation of health. Descartes argued that great souls should deal with the passions with a certain detachment, like spectators in a theater, seeking satisfaction even in adverse situations. Elisabeth, however, challenges this notion, arguing that Cartesian morality ignores the limitations imposed by the body and external influences. She points out that passions often affect our ability to make decisions, and that circumstances and physical condition affect judgment. We will see how Cartesian morality can be characterized as heroic morality, as well as Elisabeths critique of Descartes ideas of passion regulation.