Compare the way that Ender treats Bean to the way that Graff treats Ender. What does this say about the role of leadership or authority?

Ender kills two children while only trying to defend himself. What is Card saying about violence?

The buggers can communicate instantaneously, and they fought humans at first because they did not believe that they were sentient beings? Is this a statement about war? About communication?

The I.F. has control over Ender because they were the ones who authorized his birth. Does Card seem to imply that governments or international alliances be allowed to have such control over individuals?

Are the characters in Ender's Game realistic? What features, if any, do they share with real people? What features, if any, do they have that are unique to the book? What does this say about the way people are? What does it say about the way they should be?