All truth is God’s truth.  At times God communicates His truth through people (or even donkeys) who have worldviews different than our own.  By God’s common grace he has given many people expertise in certain areas.  As Christians we can benefit greatly from their expertise, provided that we filter everything through the lens of Scripture.  This has been my experience with Stephen R. Covey’s work The Seven Habits of Highly Effective People.  The seven habits include: 1. Be proactive; 2. Begin with the end in mind; 3. Put first things first; 4. Think win-win; 5. Seek first to understand, then to be understood; 6. Synergize (Teamwork); 7. Sharpen the saw.  This foundational book on leading self and others makes my list of 20 “Must Pack” books.