This document delves into ethics as a philosophical discipline, often postponed due to its apparent complexity and problematic nature in the contemporary world. The author emphasizes the necessity of distinguishing between customs (habits) and morality (moral evaluation), and between scientific and philosophical approaches to ethics. Philosophical ethics, unlike scientific ethics, does not merely describe phenomena but reflects on moral life and seeks principles. The text also touches upon the historical development of ethics, from ancient Greece to Christianity, and highlights the challenges in defining and applying ethical norms in current society, marked by a decline in morality and a loss of consensus. In conclusion, the author stresses that an inner commitment and moral sensibility, not just rational analysis, are key to understanding ethics.