Star Trek: Deep Space Nine, Season 6

Benjamin Sisko:
That was my first moment of real doubt, when I started to wonder if this whole thing was a mistake. So then I went back to my office. And there was a new casualty list, waiting for me. People are dying out there, every day! Entire worlds are struggling for their freedom, and here I am still worrying about the finer points of morality! No, I, I had to keep my eye on the ball, win the war, stopping the bloodshed—those were the priorities. So I pushed on, and every time another doubt appeared before me, I just found another way to shove it aside.