| 1 | These conservative opinions are shallow and limited, and not worthwhile to promote. | |
| 2 | It is best to know one thing than to know ingmost ten thousand things. | |
| 3 | "As a law enforcement officer, you can get tunnel vision and only see things from your perspective," he says. | |
| 4 | If you cannot travel, seek out people with whom you disagree, and read a newspaper belonging to a party that is not yours. | |
| 5 | Historians, especially those so blinded by their research interests that they have been accused of "tunnel method, "frequently fall victim to the "technical fallacy. |