“He wakes up earlier, falls asleep later, works harder than anyone I’ve ever seen. The rigors he puts himself through, the single- minded, indefatigable stubbornness as he stares at the engines, dissecting, retracing, combining, projecting. He’s tireless, unshakable. Driven in an indomitable, near- obsessive way. This iron- hard tenacity of his is an oddly attractive quality.”
