this is one of the secret things of me , the things i have not revealed to any person , save to morag , my wife , and johnnie and james , my sons , and flora , my daughter ( may the shadows rest her poor soul ) : i can run , and i can run well , and , if i need to i can run faster and longer and more sure-footedly than any full-sized man ; and it was like this that i ran then , through the mist and the rain , taking to the high ground and the black-rock ridges , yet keeping below the skyline .