I do have one though. Can't remember where I got it, but I wrote it down and keep it in my wallet. I don't say it over and over - but I say it to remind myself of how far I've come and that I need to keep going.
"I do not run. I am a runner."
I love it. It sums it up perfectly for me. What else is there to say? That's all I need. Or so I thought. :)
My Tri Coach - Coach R - has one too. He even got it tatooed on his leg. I've started using it too, as it really gets me through rough moments.
"HTFU" (harden the fuck up)
It makes me laugh, it makes me not take myself so seriously, it makes me push, it makes me through being a weenie out the window.
What's your mantra? What do you say to yourself to get moving?