[Here there's a momentary pause from Shepard in which he's quiet and more than just a little thoughtful.]

There are things that some of us have to do so that others don't have to... things to make the world a better place.

[Yeah, how many times had he sent good men to their deaths so they could complete the mission? How many criminals had he been judge, jury, and executioner for because he knew they would just go back to doing what they were doing? How many people had he killed in the name of good?]

A kid like you though? Stick to your art.