1. Absolutely not. The human mind is way too complex than just a physical phenomenon. When intoxicated by chemical, there is no deny that the thought process would be impaired. Nevertheless, under normal condition a human brain continues to process information collected or stored to facilitate decision making on a non-stop basis.
2. No. There are many different approaches people use, from ancient civilization to contemporary society, in seeking the ultimate “truth". The so-called scientific method, in its modern sense, has proven little use in even pointing to the right direction, let alone being the "best" way of establishing anything. Facts may be far different from truth, as many spiritual teaching would show.
3. If this bibilical teaching refers to the Christian Bible, I must say my first reaction after reading the Old Testament was far from being impressed. It stayed that way to this day.
