Historic changes and challenges. Breakthroughs in human knowledge and opportunity. And yet, for vast numbers across the globe, the daily realities have not altered.
It is a good rule never to see or talk to the man whose words have wrung your heart, or helped it, just as it is wise not to look down too closely at the luminous glow which sometimes shines on your path on a summer night, if you would not see the ugly worm below.