The Kingdom of God is Within You by Leo Tolstoy Chapter 5 Page 12

non-resistance of evil by force, will appear just as natural and simple as the principles of family or social life seem to us now.

Humanity can no more go backward in its development than the individual man.

Men have outlived the social, family, and state conceptions of life. Now they must go forward and assimilate the next and higher conception of life, which is what is now taking place. This change is brought about in two ways: consciously through spiritual causes, and unconsciously through material causes.

Just as the individual man very rarely changes his way of life at the dictates of his reason alone, but generally continues to live as before, in spite of the new interests and aims revealed to him by his reason, and only alters his way of living