"The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function."
- F. Scott FitzgeraldAmerican author F. Scott Fitzgerald, who is well-known for books like "The Great Gatsby," frequently examined difficult subjects and human nature. One of his most well-known observations about intelligence is that it entails the ability to perceive opposing viewpoints at the same time without being …