Authors:

In the spiritual realm nothing is indifferent: what is not useful is harmful.

Leo Tolstoy (2016). “The Spiritual Works of Leo Tolstoy: A Confession, The Kingdom of God is Within You, What I Believe, Christianity and Patriotism, Reason and Religion, The Gospel in Brief and more: Lessons on What it Means to be a True Christian From the Greatest Russian Novelists and Author of War and Peace & Anna Karenina (Including Letter to a Kind YouthandCorrespondences with Gandhi)”, p.796, e-artnow
In the spiritual realm nothing is indifferent: what is not useful is harmful.