William Shatner's genius, of course, is indisputable. It's so obvious that it hardly needs to be said.

Other than that....

Mozart. Michelangelo. Da Vinci. Beethoven. Lao-Tse. Bob Dylan. And quite possibly, Joni Mitchell.

And I'm sure there are many others. We are all potential geniuses, but not necessarily to be realized in this incarnation. Eventually, though.