"Instead of asking yourself whether you believe or not, ask yourself whether you have this day done one thing because He said, 'Do it,' or once abstained because He said, 'Do not do it.' It is simply absurd to say you believe or even to believe, in Him, if you do not do anything He tells you."- George MacDonald
Source: Lewis, C. S. George MacDonald: An Anthology. HarperCollins Publishers, Inc. New York: 1946. Pg 86.