C.S. Lewis said, in The Abolition Of Man, "It is not a theory they (authors of a textbook for British schools) put into his (the child's) mind, but an assumption, which ten years hence, its origin forgotten and it's presence unconscious, will condition him to take one side in a controversy which he has never recognized as a controversy at all. The Authors themselves, I suspect, hardly know what they are doing to the boy, and he cannot know what is being done to him."
This statement has me thinking about the hot issue in California right now with Proposition 8. I finally woke up to think about the consequences that will come out of California if not passed because of a video regarding the Parker Family in Massachusetts.
I believe this is a prime example of what Lewis is talking about. Plant the seeds of tolerance and this "feels o.k." Then as adults they are more easily swayed to accept immoral and unvirtuous principles.