Al Siebert was an American author known for his research on human survival challenges. His works delve into the strategies and psychological states of humans in extreme environments.
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“Your mind and habits will create either barriers or bridges to a better future.”
Source: The Adult Student's Guide to Survival & Success
Source: The Resiliency Advantage: Master Change, Thrive Under Pressure, and Bounce Back from Setbacks: Easyread Super Large 18pt Edition