"Mathematicians will sometimes tell you that their discipline is akin to art and poetry. Like artists and poets, mathematicians have a hard time saying what it is they do, but they sure do know it when they see it. One thing that sets math apart is that you can get actual jobs doing it...."
Transcript: AuthorNancyCasey.com/counting/
Music by Kevin MacLeod
Date-stamped 7-26-12, but material is not date-specific