What We Must Do for Our Children as They Go Off to School

Since we cannot control the classroom, we can at least prepare the pupil. You ask “How?” I answer: “Provide a guide to the glory of the celestial kingdom of God, even a barometer to distinguish between the truth of God and the theories of men.”

Thomas S. Monson, Only a Teacher, Ensign January 1990, 
A Prophet's Voice--Messages from Thomas S. Monson p. 190