A force of character
It's common for us to look to physical strength or speed as the sources of great things happening. Even if these forces are present they are not the primary factors. In reality, being able to persevere when things are tough, continuing to experiment and take risks, has as a greater influence on the outcome of a goal. You don't have to be the fastest or the strongest person to do something great. You just need to be willing to admit when you are wrong, keep trying and commit to continuing to make better choices.