Final answer:
Franz Boas believed that the best way to study any given culture was through direct ethnographic research. He rejected the idea of cultures developing in isolation and emphasized the importance of cultural relativism and the diversity of human cultures.
Step-by-step explanation:
Franz Boas believed that the best way to study any given culture was through direct ethnographic research. He insisted that scholars obtain information directly from the people they aimed to study, rather than relying on other published sources. Boas believed that each culture has its own unique historical trajectory and that cultures are constantly changing by sharing new ideas and practices. He rejected the idea that cultures develop in isolation toward a common goal and emphasized the importance of understanding cultural relativism and the diversity of human cultures.