In class we discussed that happiness was a choice. To make a marriage work you need to make the choice to be happy and to love the person, otherwise the pursuit for happiness will never end.
This goes along with the first chapter in Plantinga's book "Engaging God's World". This chapter talked about how humans have a longing, and with this longing comes the need of hope. People who are unaware of Jesus always feel the need for something more, and they feel that they need to satisfy this need. Thus, they indulge themselves in the many pleasures of this world, trying to fill the emptiness inside of them. For Christians its the hope of Jesus Christ. And we justify this hope by examination of the Bible.
After reading Lewis I found this reading kind of dull. Most of his points were taken from other authors and scholars, where as Lewis would come up with these amazing original ideas.
However, I did find the fact that Hope comes from the sin of this world interesting. Without the evil in this world we wouldn't need hope. This points to the possibility that the bad things that happen in this world all work out for the good. They point for our need of something more, which is hope.