I used 'The power of one' for one of mine, but it wasn't that great, also have you studied Medea? We are doing that in class now. I also used the movie 'Ned Kelly'(universal pictures).
Also Che Guevara and Aung San Suu Kyi are great political figuers, but if it has to be a text you might be able...
A function is EVEN if its' axis of symetry is the y axiz. Like you can reflect it exactly onto tho other side.
A function is ODD if you can rotate it around the origin and you get the SAME graph before you go the whole 36o degrees.
Just as Watatank said-parabola (y = x squared) for even...