It hurts, but thatโs all it does. The most difficult part of the training is training your mind. You build calluses on your feet to endure the road. You build calluses on your mind to endure the pain. Thereโs only one way to do that. You have to get out there and run.
David GogginsWhen you think that you are done you're only 40% in to what your body's capable of doing.that's just the limits that we put on ourselves.
David Goggins