Degrees on a wall do not reflect natural intelligence, the way I see it is how you apply yourself and utilize knowledge gained. In other words you may have a degree after seven years study, are you able to problem solve on the move as required.

Communication in languages or musical arts should never feature since a person using sign language may have a natural intelligence that far surpasses one that could speak.

Overcoming problems presented to him Steven Hawking is a fine example of moving forward, overcoming what many may never have thought possible.
http://www.hawking.org.uk/about-stephen.html