A visionary company is like a great work of art. Think of Michelangelo's scenes from Genesis on the ceiling of the Sistine Chapel or his statue of David. Think of a great and enduring novel like Huckleberry Finn or Crime and Punishment. Think of Beethoven's Ninth Symphony or Shakespeare's Henry V. Think of a beautifully designed building, like the masterpieces of Frank Lloyd Wright or Ludwig Mies van der Rohe. You can't point to any one single item that makes the whole thing work; it's the entire work-all the pieces working together to create an overall effect-that leads to enduring greatness.