However, it's not only important to be sure that what is being taught is Christian, but also important to avoid teaching non-Christian beliefs from uncultivated souls. Those who don't know God personally are not able to present things in the same way that a devout Christian can.
Basically, what I took is that current education cannot be focused on non-Christian beliefs or "cultural" beliefs of this world. Wouldn't this thought undermine all non-Christian education?I'm not sure if this was Lewis' intention. If it is, I would have to disagree with Lewis' thoughts on the matter. I went to a public school where God was most certainly not acknowledged or praised, but I can say with assurance that I learned a great deal about God and my relationship with Him in attending public school. Even though He was not mentioned, He was still present in the interactions I would have with other students and the difficult decisions I was forced to face. As Christians, it is important to build up a community to prepare the coming kingdom, but we shouldn't rule out all secular thought; much of it can lead indirectly to Christ.