ask how the world has gotten to be the way it is. Grafted onto the usual complaints about why people are so greedy, self-absorbed, and callous toward one another are new expressions of frustration about even more fundamental concerns. Why can't we agree on concepts that used to be basic common sense? Why does our very language now seem to be a minefield that only the most wily and tactical (or cynical) among us can navigate?

The only way to understand fully how we have arrived at this state -- and what, if anything, we might be able to do about it -- is to embark on a journey back in time to see where we went off the rails. With candor and occasional humor, Dan LeRoy tells the sweeping story of Western thought from its beginnings to the present, revealing the souls and idiosyncrasies of its greatest thinkers. Through stirring vignettes, he tells the real story of how our customs and thought patterns developed and then relates it to our current moment of rupture.

In pages that sometimes read like an Indiana Jones adventure, LeRoy explains the detour that philosophy took nearly a thousand years ago that has led Western society to its current, dire situation. With sharp pen and clear eye, he reveals:

• The roots of classical philosophy, including empiricism (Ready to wade into the water?)
  
• How views on ethics and morality began to take shape even before Christ
  
• The three ways to attain happiness, according to the Big Three philosophers
  
• Four splinter groups and how their philosophies impact us today
  
• The enduring teachings of Sts. Augustine and Aquinas, among many others

You will find out about amazing discoveries during the early days of rationalism, from mathematical equations to intervals between music notes, and how this universal ratio applied to another scientific revelation. Along the way, you will see the relevance of famous (and infamous) beliefs, including the Realm of Forms, the Four Causes, and Pascal's Wager as well as dualism, humanism, materialism, and pantheism. Additionally, you will learn about how these ideologies provided the basis for modern-day politics, education, and belief in the transcendent, and the bridge between ancient philosophy and Christianity.

LeRoy unveils the ways in which the beliefs our society has largely abandoned still affect our everyday lives. Knowing why we think what we think is the only way to recover the ideas -- many of them Christian in origin -- that can help turn things around and restore belief in the Unmoved Mover. This is a philosophy book not just for philosophers but for all of us.