"Negative emotions can fuel a fire that can spark a change." He takes the image and holographicly(?) displays it but before the planet is at risk. "On a world like that are countless people, living out their lives in peace and happiness; no fear of an attack." He zooms in to show these people: families smiling and enjoying one another's company, friends being together and learning more about their world and eachother; a man working hard to make sure his family can keep a roof over their head and food on their plates; a variety of scenes showing innocent lives going about their business, both the good and bad.
"These people don't deserve death by such an attack; they deserve to live their lives caring for what matters." He says before switching to the same thing Maka showed him but from the surface.
People scream, cry and pray to whatever deities they worship to protect them, not for their own sake but for those they love; those too young and too unprepared for this sort of end.
The ships of Maka's siblings arrive like before; where there was joy, there was panic; laughter, fear; families, ruin; and finally the destruction happens again as a fiery wave of molten earth crashes on a once joyous city that now was little more than dust in space.
"But this can be changed; you can show your superiors that there is strength in all emotions by embracing empathy and disdain to show what they are doing is causing harm and they are ending lives and civilizations that could've been great allies and sources of greater power through knowledge, technology and a willing share of resources rather than setting ablaze all before them until nothing remains." He stops it.
"I know this is a lot to take in but by even the smallest act of rebellion, of revelation in the strength of negative and positive emotions in tandem, a spark can light a fire that shall set in motion a change for the better to all." He lets her take time to comprehend all he has said.
OOC: and that is what I call a really long winded lecture.