We all think. But how and why do we think the ways we do? The way we look at ourselves as beings, and how we come to acquire information about the world around us may be something few people ever think about. However upon examination of the worldview we possess, and those possessed by others, we come to a new and more objective appreciation of what it is to truly be human and aware. Sire examines the worldviews of Theism, Deism, Naturalism (and it's necessary extention - Nihilism), Existentialism, Eastern Monism, and PostModernism as well as others. Again, the analysis reveals something simply profound (dare I say life-changing) to those who seek a truly objective and realistic worldview. As a Christian, I was strengthened greatly. Not merely nominally in the conclusion Sire draws, but rather, in the new understanding of the ways and reasons others' think the way they do. Taken together with works such as Hugh Ross' "Creator and the Cosmos" or "The Fingerprint of God" which show modern cosmology to be truly in harmony with the Bible, this work by Sire presents compelling evidence for the Christian Theistic worldview and faith. One outstanding point in the work is Sire's logical analysis of Naturalism's "random chance" which is used to explain a great many things. As a tool for describing our lack of information about a system, it is proper to assign probabilities and a chance 'figure' to it. However, in the naturalistic worldview where there is no belief in a 'spirit' or that the universe may be re-ordered by God or man in that respect, determinism reigns, and there is no such thing as 'random' chance at all - only man's ignorance of deterministic cause. Profound.