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.
"The Crack-Up" (1936)
![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.](http://cdn.myquotes.org/images/f-scott-fitzgerald/the-test-of-a-first-rate-intelligence-is-the-ability-to-hold-two-opposed-ideas-in-mind-at-the-same.jpg)
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.