Synthesized answer
The provided passages do not contain enough information to explain the key concepts in my own words.
The passages only provide the title of the book, "How I See Philosophy," its author, Friedrich Waismann, and its category as "Philosophy" with 269 pages. There is no content from the book itself, making it impossible to extract or explain any key concepts [Passage 1].
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: How I See Philosophy by Friedrich Waismann Categories: Philosophy Pages: 269