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https://www.centermh.org/2017/11/30/5-facts-every-resilient-person-knows/

https://www.psychologytoday.com/us/blog/tech-support/201503/5-things-you-need-know-about-resilience

https://www.takingcharge.csh.umn.edu/why-life-purpose-important

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https://www.verywellmind.com/learned-optimism-4174101

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https://groups.psychology.org.au/Assets/Files/Community-Updated-Sept061.pdf

https://www.verywellmind.com/characteristics-of-self-actualized-people-2795963