There are one-story intellects, two-story intellects, and three-story intellects with skylights.
All fact collectors, who have no aim beyond their facts, are one-story minds.
Two-story minds compare, reason, generalize, using the labors of a fact collector as well as their own.
Three-story minds idealize, imagine, predict – their best illumination comes from above, through the skylight!
~ Oliver Wendell Holmes