Everybody has a plan until they get punched in the mouth.

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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