In Alexander McCall Smith's "A Distant View of Everything," Isabel presents her private theory of moral proximity, which emphasizes our ethical responsibilities towards those we can directly see or feel connected to. This concept suggests that while it's impossible to address all the suffering in the world, we are obligated to assist those whose needs we can witness firsthand or whom we have a connection with in some way.

This theory highlights the importance of personal relationships and physical presence in our moral obligations. By focusing on a manageable scope of suffering, Isabel encourages a more localized approach to compassion and aid, promoting the idea that we can make a difference in our immediate surroundings rather than being overwhelmed by global issues.