What is it that explains the major developments and trends that have shaped our world through the ages? Obviously there are lots of factors involved. Human history is complex, multifaceted and there are many causes that account for all the specific, detailed events that occur. But the question is: Is there a fundamental cause that explains the big picture? Is there an ultimate cause that directs the overall sweep of history?

Ayn Rand, the iconic American novelist and philosopher, argued that there is. In her view, the primary force that drives history is philosophy—the basic philosophical ideas that shape people's beliefs and values, their choices and actions.

Join Keith Lockitch to explore this issue: What drives history?