No obstacle is so big that one person with determination can't make a difference.
Pain is temporary. It may last a minute, or an hour, or a day, or a year, but eventually it will subside and something else will take its place. If I quit, however, it lasts forever. That surrender, even the smallest act of giving up, stays with me. So when I feel like quitting, I ask myself, which would I rather live with?
I must fling myself down and writhe; I must strive with every piece of force I possess; I bruise and batter myself against the floor, the walls; I strain and sob and exhaust myself, and begin again, and exhaust myself again; but do I feel pain? Never. How can I feel pain? There is no place for it.
Power and influence: things that should be obtained not for means of greed, nor pride, nor ego, but rather to ensure that in the right moment, when your wisdom and benevolence are required to keep humanity strong and united, you can deliver and orchestrate others toward the greater good.