David Goggins, often referred to as the hardest motherfucker on planet Earth.

The only member of the US Armed Forces to have completed Navy SEAL training,

US Army Ranger School, and Air Force Tactical Air Controller Training.

Anything that makes me feel that fear feeling

is gonna get overcome.

Fear is my ultimate guide.

The worst thing in life that happens to a man

is that gets civilized or a woman anybody.

Because you lose the hunger for life. That's my biggest fear.

I get to point where life has come to me and I have that feeling if I've arrived.

Most of life, you're alone up here, you're alone.

Yeah, we can be our worst enemy.

During the morning time, I build the armor, I face the world,

because now I know there's gonna be some disappointments

along the way every day, that's life.

But if you face disappointments already in

victory, the things I can control is I can control my run. I can control how my

house looks. How my world is. I can control that so I want. Open my door of life. Life starts to beat me down. I'm facing it with the body armor that I created.

We all look for toughness. We all want it, but we look for it in a comfortable environment. You will not find toughness in a comfortable environment.

The only way you find it is to drown yourself

in a position where you're just out of sorts, where you can't swim and you're drowning.

Trying hard is something in your mind just doesn't stop,

...