Even though I agree with most of Bertrand Russell's opinions about ancient philosophers up until the "Enlightenment" era, it's a little too opinionated for most audiences to benefit from, particularly towards the end when he criticizes his contemporaries and sometimes misunderstands people like Henri Bergson. De-mythologizing philosophers is a good thing, but this book was written for beginners and casual readers, who might adopt his opinions because they don't know any better.