Here are some interesting quotes from Lesslie Newbigin's The Gospel in a Pluralist Society.

If the relativist claims that, since all reasoning is embodied in a particular social context, no claim to know the truth can be sustained, one has to ask for the basis on which this claim is made.

------

The scientist starts with the conviction that the world is rational and that events at different times and places in the natural world can be related to one another in a coherent way. Without this conviction, which is a matter of faith, he could not begin his work. (Lewis argues something like this in Miracles.)

------

Missions are the test of our faith that the gospel is true.

-----

Mission is an acted out doxology.

-----

We must always be ready to recognize that we have misrepresented the intention of Jesus because of our own interests. But that correction comes not from some supposed position of epistemological privilege outside the Christian story; it comes from the story itself when we expose ourselves honestly to the need of all people.

-----