While I'm glad I read Prof. Kreeft's "Back to Virtue," I had a tough time getting through it. At one point, I set it aside and was almost certain I wouldn't return to it. But I ultimately did return to it, and I think it's done me good.Prof. Kreeft here provides numerous pieces of excellent advice and memorable insights. The problem, for me at least, was that his authorial voice is quite cold. I didn't get the feeling that he sympathizes with the reader's struggles to stay on the straight and narrow path. His presentation is more along the lines of "this is what you have to do; if you can't hack it, then so much the worse for you."Another problem for me was one that seems to crop up in many discussions of ethics: Once the author has established the governing principles, he writes as if the application of those principles to specific ethical questions is a cut-and-dried matter that requires no real analysis. However, the most troubling ethical questions are rarely that simple. Agreeing on first principles is only half -- or maybe three quarters -- of the battle. We still need to reason from the general principles to what should be done in the specific situation.For example, Prof. Kreeft says, in his chapter on avarice, that the profit motive is bad, and that nothing good can come from something bad. But he doesn't justify this point with any reasoning or explore its implications. One wonders, for instance, how Prof. Kreeft would reconcile that assertion with the Church's investing surplus funds in order to achieve a healthy return, as opposed to, say, making interest-free loans to the faithful or the needy. I'm sure Prof. Kreeft *can* reconcile those points, but he doesn't do so in "Back to Virtue."Finally, regarding the Kindle edition specifically, it is very well done, with few typos, good formatting, a linked table of contents, and linked footnotes. One excellent feature that I haven't seen elsewhere was a "back to text" link at the end of every footnote. This is great because it enables you to skim the footnotes and go directly from a given note that might interest you to the relevant text.