Rational assessments too often led to rational surrenders.

For me, it's about optimizing health. It's about lifestyle and longevity. Then you think about what vegetarian diets can do for the mass population, in terms of lower consumption of resources. When you look at the numbers, it's pretty staggering.

Injuries are our best teachers.

Overcoming the difficulties of an ultramarathon reminds me that I can overcome the difficulties of life

As powerful as our legs are, as magnificent as our lungs and arms and muscles are, nothing matters more than the mind.

Only the most saintly and delusional among us welcomes all pain as challenge, perceives all loss as harsh blessing.

Every single one of us possesses the strength to attempt something he isn't sure he can accomplish.