This quote first:
What was not rational about our WT experience is not that the arguments of the WT were totally irrational, but that we set aside rationality in choosing what data to include and who to trust for accurate information. Believing the GB spoke for God was a myth. Those in the mythical level WANT to believe God speaks to them and will trust the message without question. When we begin to question the message we are at least becoming more rational about the source of truth.
Second quote (wow...alot of meaning succinctly but also poetically put):
Science (through perception and interpretation, hence ever open to doubt and reinterpretation) is concerned with what is. That there is, is a certainty. Perhaps the only one. But it is not a what. Hence it is not scientific and not even thinkable, except through the admitted inaccuracy of poetical metaphors. Like, the murmur of a spring in the night.
And because of the possible differences in interpretation and experiences, its very important for people in science to use agreed upon definitions and terminology. So as Terry and Six already stressed, the language needs to be as explicit and as specific as possible for us to reliably build upon each other's interactions with our surroundings. But as LittleToe and Narkissos point out, fundamentally we're all modelling whats external to us. I optimistically believe though that science is doing a great job of bringing those models closer to that is.