Which other person might you be referring to? St. Paul? St. Peter? St. Gregory? St. Leo?
Let's see I have the wisdom all the church fathers before me and you sit there reading the bible interpreting it for yourself. Who has authority on their side? :-)
I will gladly match the authority and and wisdom of my God who inspired the scriptures and instructed me to study them against every Catholic scholar you can name for the past two thousand years. Paul discussed the "wisdom" of your scholars in Rom 1:22 and again in I Cor 3:19. In addition my God is qwuite capable of inspiring a Bible that the common man can understand. Your disputing of this places you in the same category as those of whom Jesus spoke in Matt 22:29. The fact of the matter is that the Bible is so straigntforward and understandable that to misunderstand it you must have the help of a Priest, Rabbi, or Preacher.