The best buildings are those that tell a story, that have a soul.
"The only real elegance is in the mind; if you've got that, the rest really comes from it."
You can obsess about serving your customers/audience/clients, or you can obsess about beating the competition. Both work, but of the two, obsessing about your customers will take you further.
The human mind is a complex system, and understanding it requires a multidisciplinary approach.