T. S. Eliot, Burnt Norton in Four Quartets (Faber and Faber, 2001).
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Kabat-Zinn, J., Full Catastrophe Living: Using the Wisdom of Your Body and Mind to Face Stress, Pain and Illness (Piatkus, 1990), pp. 92–3; Williams, J. M. G., Teasdale, J. D., Segal, Z. V. & Kabat-Zinn, J., The Mindful Way Through Depression: Freeing Yourself from Chronic Unhappiness (Guilford Press, 2007), pp. 104–6.
