Assuming access to the main website, please describe the primary mission of the American Philosophical Society as stated on the Digital Library website. Additionally, identify the main sections or categories of content available through the primary navigation links.
Navigate to 'https://diglib.amphilsoc.org/' (assuming the human verification challenge is bypassed or irrelevant for this task context). Locate and extract the description of the American Philosophical Society's mission. Identify the main navigation links available on the homepage. List the names of these main navigation sections. Synthesize the mission statement and the identified navigation sections into a concise answer.
The mission of the American Philosophical Society is stated as: 'An eminent scholarly organization of international reputation, the American Philosophical Society promotes useful knowledge in the sciences and humanities through excellence in scholarly research, professional meetings, support of young scholars, publications, library resources, a museum and community outreach.' The main navigation links are identified as 'Home', 'Collections', and 'About'.