Doing a PhD focuses on developing research skills and abilities rather than just acquiring knowledge. The main goal is to become a competent researcher who can independently conduct research in their chosen field. Key abilities developed through PhD coursework and research include breadth of knowledge in the discipline, expertise in a focused area, identifying research problems, conducting research, and communicating results. While research results are important, the primary purpose of a PhD is to gain these foundational abilities needed for a career in research. Developing these skills largely occurs through self-motivated learning and perseverance rather than direct teaching.