Simplicity of design as well as simplicity of user interaction is in my mind the key to great design. The ability to think differently, take in vast amounts of information and boil it down to it's simplest and purest form is a phenomenal skill and much easier said than done. I like the quote by Albert Einstein:
"Everything should be made as simple as possible, but not one bit simpler."One of the most fascinating things to me about graphic design, and all fields of design, is the process of molding an environment—whether it be a sheet of paper or a physical space—to marry beautiful form with user-friendly function. Simplifying the complex to deliver a clear message. Design is definitely more than just pretty pictures. Well, good design anyway.