Everything you need to understand or teach Hardfought by Greg Bear.
Hardfought tells of a small portion in an eons-long war between humanity and the very ancient species of the Senexi. The narrative focuses on Prufrax, a girl barely entering her adolescence, and Aryz, a Senexi whose job is to first understand humans and then, if successful, commit suicide. The violent coming together of these very different beings illustrates how understanding between humans and Senexi might be achieved and how such understanding could lead...