Because a man has great schooling, is educated according to the ideas of the world, is not sufficient reason why he should be called to take charge of a class in any of the organizations or priesthood quorums within the Church.
Now, if he has scholastic ability and training, and along with it has faith in the principles of the gospel and in the mission of the Lord Jesus Christ, and of the Prophet Joseph Smith, all is well and good.
But if he is filled with all kinds of philosophy and notions and cannot accept the doctrines in the standard works of the Church, we do not want him, whether it is in our auxiliaries or the priesthood, or in our seminaries or institutes, that are given for the teaching of religious principles and to instil faith in the hearts of our young people. . . .
It makes no difference who the teacher is, if he teaches false doctrine, if he teaches that which has been condemned by the Lord, that is contrary to what is written in the revelations given to the Church, then he should not teach.
(Joseph Fielding Smith, Conference Report, Oct. 1954, pp. 21–22)