Book excerpt: Former Nixon and Reagan cabinet member George Shultz offers his views on how to govern more effectively, get our economy back on track, take advantage of new opportunities in the energy field, combat the use of addictive drugs, apply a strategic overview to diplomacy, and identify necessary steps to achieve a world without nuclear weapons. If we can successfully handle each of these issues, Shultz explains, we in the United States and people in the rest of the world will have the prospect of a better future.