This article aims to show how Edmund Pellegrino understood the philosophy of medicine and to demonstrate how ethics based on virtue is an adequate response to such an understanding. The American bioethicist claimed that the primary goal of medicine is the patient's good, and the doctor's mission is to serve that good. Such a statement is very often misinterpreted and leads to confusion. For this reason, the author of this article will try to defend against this claim. To do that, after a brief biographical introduction, the author will discuss the sources of Edmund Pellegrino's virtue ethics and show how four types of the good of the patient can be understood: the medical good, the good experienced by the patient, the good of a patient as a person, and the patient's spiritual good. This clarification will prove necessary to properly understand the initial thesis that the goal of the medical profession is the patient's good. Only after this explanation will it become possible to show how virtues are an adequate response to seeking the good—the goal of the medical profession. Among several virtues, Pellegrino considered the benefit of trust to be the most important. An interesting question that emerges from this reflection is related to the relationship between the types of patient good. Are any of the four more important than the others? Can any of them be sacrificed to preserve others? The author will attempt to prove that without an answer to these doubts, constructing an ethics that seeks the patient's good is impossible.