We need to be careful about practical book's propaganda and oratory. This kind of marketing can blur the important proposal, thus the need of rhetoric ([202107062037 Critics need rhetoric](202107062037%20Critics%20need%20rhetoric.md)). This mean we need to develop our “sales resistancy” trait. --- *From: [How To Read A Book, The Classic Guide To Intelligent Reading - Mortimer J. Adler, Charles Van Doren](How%20To%20Read%20A%20Book,%20The%20Classic%20Guide%20To%20Intelligent%20Reading%20-%20Mortimer%20J.%20Adler,%20Charles%20Van%20Doren.md)*