To design is to take a problem, and turn it inside out.
To aim for greatness is about being so humble about one’s own limitations you can be earnest in the pursuit of what you don’t know you don’t know.
To create is to dare—knowing failure may be lurking just beyond the next corner, but to keep at it anyway.
To invent the future is special art that requires imagination, commonsense, good humor.
Bill taught us all these lessons.
But he will be remembered above all else for the way in which he taught us. With grace. A warm mischievous way. And an open heart.