Liberty, Freedom, and Power

My latest column is now online. The introduction:
I thought I would take this week's column to explore some thoughts and ideas that have been strewing around my mind over the last few months. These thoughts, while seemingly complete, are in constant reflection and refinement. They concern the concepts of "liberty," "freedom," and "power." While liberty and freedom are often used synonymously, I believe there is an important and significant difference. Likewise, power has important significance when contrasted with both liberty and freedom. Let us begin with liberty.