Creativity is free, but having mental models, abilities to express, experience and domain knowledge is expensive and hard-won. If you don't have the latter, the

Creativity is free, but having mental models, abilities to express, experience and domain knowledge is expensive and hard-won. If you don't have the latter, the former (creativity) will not produce good ideas that fit and evolve the latter, to result in success and wealth. Not everyone has the former, and not everyone has the latter.