The Kingdom of God is Within You by Leo Tolstoy Chapter 5 Page 3

they have studied, as the scientific men do, the external forms in which it has been manifested. Another reason is the mistaken notion that it is impracticable, and ought to be replaced by the doctrine of love for humanity. But the principal reason, which is the source of all the other mistaken ideas about it, is the notion that Christianity is a doctrine which can be accepted or rejected without any change of life.

Men who are used to the existing order of things, who like it and dread its being changed, try to take the doctrine as a collection of revelations and rules which one can accept without their modifying one's life.

While Christ's teaching is not only a doctrine which gives rules which a man must follow, it unfolds a new meaning in life, and defines a whole world of human