We were in a seminar today about God's work in mission and this quotation was thrown into the discussion. It doesn't feature (yet) on Google, so I am putting it here for Google to find!
"If the impossible is not part of our plans, then God is not one of our partners".
What does that have to do with O.R.? Not much, but it is a reminder that O.R. cannot be applied to Christian work because of God's role in it!