The new science of psychology was on hand with new theories about how intelligence could be tested and measured. For the most part, intelligence was defined in terms of verbal and mathematical reasoning. These were also processes that were used to quantify the results. The most significant idea in the middle of all this was IQ. So it is that we came to think of real intelligence in terms of logical analysis: believing that rationalist forms of thinking were superior to feeling and emotion, and that the ideas that really count can be conveyed in words or through mathematical expressions.
