1. Alexander, J. (1960). The psychology of bitterness. International Journal of Psycho-Analysis, 41, 514–520.
2. Ardelt, M. & Jeste, D. V. (2018). Wisdom and hard times: The ameliorating effect of wisdom on the negative association between adverse life events and well-being. The Journals of Gerontology: Series B, 73(8), 1374–1383.
3. Aristotle. (n.d.). Nicomachean ethics. Retrieved January7, 2020 from https://socialsciences.mcmaster.ca/econ/ugcm/3ll3/aristotle/Ethics.pdf
4. Stress sensitivity and the development of affective disorders