... a practical problem can only be solved by action itself. When your practical problem is how to earn a living, a book on how to make friends and influence people cannot solve it, though it may suggest things to do. Nothing short of the doing solves the problem. It is solved only by earning a living.
Mortimer J. Adler, How to Read a Book: The Classic Guide to Intelligent Reading
job, limitations, practicality, reading, work