This article proposes a general analysis of the concept of will being defined as a person’s ability to act in order to achieve a conscious purpose, exceeding certain inner or external barriers. To this regard, this work paper allows the reader to realize that the act of will expresses his entire personality, and therefore a person passes judgments according to their beliefs, skills, feelings, his moral principles, and his will. Eventually, only a man with good motivation, aware of the importance of the aim pursued, who is confident in himself, will certainly prove that he is a strong-willed man. Therefore, strong will is not only the science of wanting and achieving something, but also the science of giving up on something.