Revealed
knowledge may in the beginning be unbelievable because of our paradoxical
desire to verify everything with our tiny brains, but the speculative means of
attaining knowledge is always imperfect. The perfect knowledge propounded in
the revealed scriptures is confirmed by the great äcäryas, who have left ample commentations upon them; none of these
äcäryas has disbelieved in the çästras. One who disbelieves in the çästras is an atheist, and we should not
consult an atheist, however great he may be. A staunch believer in the çästras, with all their diversities, is
the right person from whom to gather real knowledge. Such knowledge may seem
inconceivable in the beginning, but when put forward by the proper authority
its meaning is revealed, and then one no longer has any doubts about it. (Srila Prabhupada, CC Adi, 5.14)