This book is a systematic introduction to moral philosophy (or as it is also called: ethics) that aims at raising its readers' ethical literacy and competence. Starting from the nature and end of this science it examines the fundamental questions and concepts of ethics. The core chapters familiarise the reader with the elements of a human act, outline how these elements influence the ethical quality of such act and shed light on the standard of morality, i.e. the good. The book furthermore clarifies the concepts of duty, right as well as responsibility and explicates the moral duties and rights of the human person. In doing so it also elucidates the notions of human dignity and the common good. Last but not least, the book contains a range of practical tools that help the reader put ethical theory into practice. The comprehensive appendix contains chapters on the virtues, propositional logic and arguments.