Final answer:
Oliver Wendell Holmes was primarily committed to a career in law, emphasizing the adaptability of the Constitution and law to meet contemporary social needs.
Step-by-step explanation:
Justice Oliver Wendell Holmes is well-known for his influential career in law, particularly as a progressive jurist. However, his other career choices are not directly mentioned in the provided references or widely documented in historical records.
We can infer, though, based on his profound impact on legal theory and his notion of the law evolving with the 'felt necessities of the time', that his career was dedicated primarily to law and the interpretation of the Constitution in the context of contemporary society.
Moreover, Holmes’s approach to the law as a practice that must respond to current social ends suggests that he valued progress and adaptation in his career.
This is reflective of an era of change at the start of the 20th century. Holmes's career choice in law allowed him to exercise such influence during a dynamic period in American history and engage with the significant social and political reforms of his time.