A man is what he repeatedly does. Excellence, then, is not an act but a habit.
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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