(quote from RealReality.org/Real_Faith_and_Reason_Vol_2_-_Scientia.pdf)

Since assumptions go beyond knowledge, we assume what we can’t know. We can make those assumptions anything we want them to be, so they’re a good basis for wishful thinking but not for finding truth. Consequently, if we allow even a single assumption in our thinking, we can “prove” anything to ourselves. So if we want to pretend to know what we don’t know, assumptions supply what we need. Often, our pride directs us to seek our own minds rather than God’s mind. Human pride insists the human mind is trustworthy. However, insisting the human mind is trustworthy denies what God says about the human mind. Perhaps everyone is guilty of putting too much confidence in human ideas and too little confidence in God at times. We must remember what God says. God says the desperately wicked human mind deceives, and we shouldn’t trust it.

(end quote)