Elder Packer begins his seminary devotional by telling students they "are growing up in enemy territory" and proceeds to give wisdom he has gained throughout his life that will help each of us.  He shares the importance of listening to and acting on promptings from the Holy Ghost, using our agency to create virtuous lives, exercising self-discipline as disciples of Christ, repenting often, and making the most of seminary.  Which pieces of wisdom will you apply in your life?