Language study is not the only area where the iPhone is likely having an influence on the humanities. Apps like Philosophy – The Essential Collection ($1.99) introduce the student or amateur to the thinking of great philosophers, from John Locke to my current favorite and somewhat confounding writer, Friedrich Nietzsche. I see his “the will to power” as an important concept to help us through these troubled economic times. The Essential Collection comes bundled with the iFlow reader, which works well enough. I think it would be even better if it had text-to-speech capability.