Synthesized answer
The provided passages do not contain enough information to answer the question about the key concepts in my own words. The passages only state the title of the book, its author, categories, and page count [304]. There is no content from the book itself that explains its key concepts.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: The Higher Learning in America by Thorstein Veblen Categories: Education, Higher Pages: 304