What inspired the author to focus on mental toughness as the key to success?
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Relentless

Relentless
De lezersdiscussie is nu open. Een geverifieerde auteur kan deelnemen nadat dit profiel is geclaimd.
What inspired the author to focus on mental toughness as the key to success?
Did anyone else find the concept of 'The Cleaner' relatable or inspiring in their own careers?
How do you think the stories of top performers in the book translate to everyday life?