Leo Tolstoy,
What I Believe — Chapter 12
“ I can remember perfectly well that the feeling of enmity toward other nations, the assumption that a difference existed between them and myself, was not a feeling natural to me, but was grafted upon me by the senseless education given to me. But I now understand the meaning of the words, ‘Love your enemies, do good to them.’ You are all the children of one Father, therefore be like the Father; that is, make no distinction between men, treat all as brethren. I now see clearly that I can only attain happiness by being in unity with all my fellow-creatures. ”
