"We do what we must because we can." - Aperture Science
"When life gives you lemons? Don't make lemonade. Make life take the lemons back! GET MAD! 'I don't want your damn lemons! What am I supposed to do with these?!' Demand to see life's manager! Make life rue the day it thought it could give Cave Johnson lemons! Do you know who I am?! I'm the man who's going to burn your house down! With the lemons! I'm going to get my engineers to invent a combustible lemon that burns your house down!" — Cave Johnson