The root of knowledge for science is observation: that which you can measure by sight, smell, taste, touch, or sound. Another root of knowledge for the religion/philosophy of Buddhism is intuition: that which is realized in one's everyday walk of life and, perhaps more importantly, that which is learned via meditation.
The root of Christian knowledge, however, is not achieved 1st hand. It is an external form of knowledge: revelation. Paul talks about it in Ephesians 3:2-5:
2Surely you have heard about the administration of God's grace that was given to me for you, 3that is, the mystery made known to me by revelation, as I have already written briefly. 4In reading this, then, you will be able to understand my insight into the mystery of Christ, 5which was not made known to men in other generations as it has now been revealed by the Spirit to God's holy apostles and prophets.
Not that other roots of knowledge are unimportant. There is a sense in which we can know about God through those other ways of learning. Ecclesiastes 3:11b seems to indicate that there is an intuitive way that we can know about God. Romans 1 and Psalms 19 teach us that there is also an observational sense in which we may learn about God. But none of these are as important as that which we can gain by revelation.
Paul is very clear in this passage about how revelation works. It is, first & foremost, a gift from God ("the administration of God's grace ..."). It is to be shared rather than hoarded ("... that was given to me for you."). Contrary to popular belief in some circles of historical-critical philosophy, we can understand what God revealed by reading and comprehending what Paul & other inspired writers have recorded ("In reading this, then, you will be able to understand my insight ..."). And God revealed his message to a select few individuals by the Spirit.
I believe that it is imperative that we very carefully & deliberately consider what it is that we rely on as our base of knowledge. What do we draw upon for wisdom? I hope that it isn't merely intuition & observation. While those are good, we have a source of knowledge that transcends those. Let us not ignore it, nor be ignorant of it.
I've heard other people say this before, and I am finding it to be true myself. The older I get, the more respect I have for the Word of God.