What I Believe is an philosophical essay Tolstoy wrote in 1884.
This text was translated from Russian to English by Constantine Popoff in 1890. The source text for this ebook is on Wikisource
If you can read read Russian you might also be interested in Vera project, which is the original book, "В чем моя вера?".
In the repository you'll find a build.sh utility, run it in UNIX environment.
$ ./build.sh
Windows users can use free utility called ePubPack.
Download What I Believe by Leo Tolstoy.