Favorite Theorist.

We had another education pr0fess0r candidate visit campus today.  And as usual, the student interviewers (myself included) asked the question:

Who is your favorite educational the0rist, and why?

That's the question we always ask candidates. 

Who's your favorite educational the0rist, and why?  I'm always curious.

(Also, is it excessive for a perspective professor to say "um" 56 times during 10 minutes of her presentation?  She was saying "um" so often that I decided to count, and that's what I came up with.)