If I summarized the book of 1 Corinthians I might say, 'Do your absolute best to serve the Lord with your whole life. Paul deals with a diversity of issues throughout the book. He addresses the Christ centeredness of life, divisions in the church, the wisdom of God as opposed to the wisdom of the world, lawsuits among believers, marriage, ministry salaries, eating different types of foods and doing everything to glorify God. Paul writes in an all encompassing way.
This is how our lives should be lived. Our relationship with Jesus Christ saturates all of life. There is nothing in our life the Lord is not a part of. In fact, if Jesus is Lord of our life then he is Lord over every part of life.
When I think through my life and how I live it I see some areas that are fully submitted to the Lord and some that aren't. I don't do this legalistically, judging my eternal state based on performance. I do it because I desire to please the Lord and experience the joy of intimate relationship with him.
1 Corinthians 9:24 Do you not know that in a race all the runners run, but only one receives the prize? So run that you may obtain it.
1 Corinthians 9:27 But I discipline my body and keep it under control, lest after preaching to others I myself should be disqualified.
1 Corinthians 10:23 All things are lawful, but not all things are helpful. 'All things are lawful,' but not all things build up.
1 Corinthians 10:31 So, whether you eat or drink, or whatever you do, do all to the glory of God.
Taken from reading 1 Corinthians 6-10