A growth mindset is the belief that abilities can be developed. A fixed mindset is the belief they are given. The difference is whether you treat hard things as evidence of who you are, or as the path to who you are becoming.

Mindset: The New Psychology of Success · 2006

About the concept

Mental Toughness

Mental toughness is not grit. It is not Stoicism. It is not Sisu. It overlaps with all three and is the same as none of them. The modern doctrine — codified by David Goggins, Jocko Willink, Mark Divine, and the SEAL selection programs they came out of — is built on a small set of…

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