The first arcanum produces a person who goes on learning all their life. They are curious about how everything is put together, and they set about working it out for themselves rather than waiting to be told.
This is an age, not merely a cast of mind: such people stay young in manner longer than others — they connect easily, take up new things easily, change occupation easily. With their contemporaries they are on equal terms at any age.
The strength here is the ability to master the unfamiliar quickly and to join together what other people keep apart. The weakness is scattering: the interest flares up and dies down before the job has been carried through.
The first arcanum comes into its own where one has to keep learning something new and explaining it to others.
