"Despite the challenging conditions, I wasn't physically done—my mind was simply trying to protect me from discomfort. For the next 6 miles, I battled my own mental resistance." https://benmeer.com/newsletter/the-40-rule/?utm_source=mail.benmeer.com&utm_medium=newsletter&utm_campaign=a-system-for-building-grit-the-40-rule&_bhlid=dc733e8cd5725c55c053c1eac222f39e3169f3ab