I was just listening to a tape this morning by Paris Reidhead - "Ten Shekels and a Shirt". In it he defines Pragmatism as: if it works it's true, if it succeeds it's good, the proof of any teaching is does it work.
Pragmatism is a philosophical movement that includes those who claim that an ideology or proposition is true if it works satisfactorily, that the meaning of a proposition is to be found in the practical consequences of accepting it, and that unpractical ideas are to be rejected. ...
en.wikipedia.org/wiki/Pragmatism
Many people, including Christians of the current generation, subscribe to this philosophy in their beliefs. They would say: "It's true if it works!" But we need to be thinking the actual opposite: if it works it doesn't necessarily make it true. What is true is defined for us by scripture, the Bible. Our experience can not define what is true, on the contrary, our experience must be defined by what is true!