This is a story without end. All the world is still an America. The most promising words ever written on the maps of human knowledge are terra incognita—unknown territory.

once a Memex user had created an associative trail, he or she could copy it and exchange it with others. This meant that the construction of trails would quickly become a community endeavor, which would over time produce a vast, ever-expanding, and ever more richly cross-linked web of all human knowledge.

Spend the afternoon. You can’t take it with you.

How we spend our days is, of course, how we spend our lives. What we do with this hour, and that one, is what we are doing.