Through her discovery of Christian Science, Mary Baker Eddy revealed the fact that mortal mind is the one and only liar, and for this she deserves endless gratitude.
In countless ways, throughout all ages, the false mentality, which Paul calls "the carnal mind," has befooled and betrayed men. Until spiritually awakened to the deceptive suggestions of the tempter, one may be duped into believing them to be his own thoughts.
The student of Christian Science learns that every thought which does not measure up to God's standard is erroneous, and no part of his true consciousness or selfhood. This welcome revelation shows him the necessity of thoroughly revising his concept of the nature and origin of all true thinking. He now begins to glimpse the Christianly scientific way out of the maze of material beliefs, or lies, of mortal mind, and starts on the road which will mean liberation from the many obstacles which were retarding his spiritual growth.