if you don't get the pie chart:Warning: Fate/Stay Night - Heaven's Feel Spoiler! (Click to show)
It's referring to one of the final choices in the route where shirou can choose to follow kiritsugu's footsteps and be a superhero (i.e. sacrifice for the greater good) or save that one girl you really like.
The lines in the background are from F/SN too~
I only read part of the spoiler. I wnat to play the game,. I am typiung looking down right now. Interesting