Focus on verbal/linguistic and logical/mathematical intelligences robs us of the wealth untapped in the remaining six intelligences: interpersonal, intrapersonal, spacial, musical, naturalistic, and kinesthetic.
Howard Gardner's Theory of Multiple Intelligences (MI) proposes that cognition isn't unitary and that individuals cannot be described as having a single, quantifiable intelligence. Published in 1983, his theory stipulated seven of which one more was added a year later.
Note: Intelligence is defined as the ability to solve problems, the ability to create problems to be solved, and the ability to create a product or a service that is of value to one's culture.