‘Be in the world but not of the world’

(we fed all the missionaries from our ward last night, we have two sets, usually I feed just one at a time but figured this way was easier)
I want to remember the lesson as it was so I'm directly copying the email I received from the teacher.
When he was reading the below quotes I thought a lot about my own desires not to send my children to public school.  It made me feel better about sending my children to school.  I think it was just what I needed because I still struggle with the thought of sending my children to school and not being able to always just keep them home with me.  I guess only time (and prayer) will tell what I end up doing in regards to school for my children.

Here is the information you requested on Sunday (Lesson 24):

http://lds.org/manual/new-testament-gospel-doctrine-teachers-manual/lesson-24-this-is-life-eternal?lang=eng

And here are some specific quotes about what we discussed in regard to living in the world and not of the world. It's interesting to see in the Savior's prayer in John 17 that he tells the apostles to not withdraw from the world. But to stay in the world and make a difference for the good:

Elder M. Russell Ballard said:

“In the Church, we often state the couplet, ‘Be in the world but not of the world.’ As we observe television shows that make profanity, violence, and infidelity commonplace and even glamorous, we often wish we could lock out the world in some way and isolate our families from it all. …

“Perhaps we should state the couplet previously mentioned as two separate admonitions. First, ‘Be in the world.’ Be involved; be informed. Try to be understanding and tolerant and to appreciate diversity. Make meaningful contributions to society through service and involvement. Second, ‘Be not of the world.’ Do not follow wrong paths or bend to accommodate or accept what is not right.

“We should strive to change the corrupt and immoral tendencies in television and in society by keeping things that offend and debase out of our homes. In spite of all of the wickedness in the world, and in spite of all the opposition to good that we find on every hand, we should not try to take ourselves or our children out of the world. Jesus said, ‘The kingdom of heaven is like unto leaven,’ or yeast (Matthew 13:33). We are to lift the world and help all to rise above the wickedness that surrounds us. The Savior prayed to the Father:

“‘I pray not that thou shouldest take them out of the world, but that thou shouldest keep them from the evil’ (John 17:15)” (in Conference Report, Apr. 1989, 101; or Ensign, May 1989, 80).