Mindset and grit

Can’t Hurt Me

David Goggins (2018)

A former Navy SEAL on mental toughness and pushing past limits.

Key concepts

  • The 40% rule: when you think you’re done, you’re at 40%
  • Callous the mind through discomfort
  • The cookie jar: draw on past wins
  • Accountability mirror

How I use it

Honestly, the 40% rule describes my last ten years. Applying for hundreds of jobs to get a visa. Getting through one challenge after another. Trying to stand out through layoffs and a pandemic. Instead of letting it get me down, I studied hard and made myself an expert in data and cloud engineering, so I stayed relevant.

Running is the same for me. You don’t need to go to Goggins’s extremes, but I’ve had my own moments on a run where I had to decide to carry on.

Connected books

  • Mindset Carol S. Dweck

  • Shoe Dog Phil Knight

  • Man’s Search for Meaning Viktor E. Frankl