The character saying those things was designed with a 4-year lifespan to do nothing but fight in wars. This is his moment of character development: he was a too

The character saying those things was designed with a 4-year lifespan to do nothing but fight in wars. This is his moment of character development: he was a tool of warfare, but he found beauty in those moments, proving he was capable of something else besides killing. It's a major point of the movie. Note that in a sense, it mirrors many developments in automation in the real world. Military drones and whatnot.