It's hard to overestimate Lydiard's influence. Given the dominance of interval training in the late 50s and early 60s, he truly revolutionized long distance training. Who would have thought that in order to run fast, one first had to run long; and in order to run fast on a flat surface, one first had to run uphill; and in order to run fast on a flat surface, one first had to run even faster than that on a flat surface? Like several others on this thread, I'm going out for a run with Lydiard on my mind, knowing that while he's dead, and remains alive.