Quite a few years back, Apple Computer ran its "Think Different" campaign. I was fortunate enough to get posters of the campaign and they are still hanging in the classroom I taught in back them-- the current user refuses to give them back because they are such great posters.
The posters featured large, black and white photos of people who had thought differently from their contemporaries, such as Cesar Chavez, Picasso, Jim Henson, Einstein, and Amelia Earhart. In the corner of the poster was the Apple logo and the words "Think Different." Many times those posters served as segues to conversations about these people who changed the world through their unconventional thoughts and actions.
I am pleased to say that after all this time, Apple has returned to this format to include one more very important person. Even if you hate all things Mac, take the time to check it out on their home page. [Update: Apple moved it from their home page to here.]