I love this- especially to get through (or even to get up for!) runs on these hot and humid days!
“The best way to become a mentally tough runner is to believe that you’re a mentally tough runner.”
And BONUS- another good one to get through summer runs:
“Experience has taught me how important it is to keep going, focusing on running fast and relaxed. Eventually pain passes and the flow returns. “
-Frank Short, 1972 Olympic Marathon Gold Medalist