Instruction on the Ecclesial Vocation of the Theologian
"As for theologians, by virtue of their own proper charisms, they have the responsibility of participating in the building up of Christ's Body in unity and truth. Their contribution is needed more than ever, for evangelization on a world scale requires the efforts of the whole People of God."
This paragraph comes from the Instruction on the Ecclesial Vocation of the Theologian issued by the Congregation for the Doctrine of the Faith in 1990. It is 14 pages long, but definitely worth reading.