A psychological mutation

Can you and I, then, bring about in ourselves without any outside influence, without any persuasion, without any fear of punishment- can we bring about in the very essence of our being a total revolution, a psychological mutation, so that we are no longer brutal, violent, competitive, anxious, fearful, greedy, envious and all the rest of the manifestations of our nature which we have built up the rotten society in which we live our daily lives?