ISB 18 - Knowing; ISB 20 Fishermen

ISB 18

. . . what is knowing
but collecting and storing up riches in a casket,
and only looking at them occasionally
and counting them over,
without any thought of use from them?

ISB 20

What is a spiritual fisherman?
. . . a fisherman in the spiritual sense of the Word,
signifies a person who investigates and teaches
natural truths,
and afterwards spiritual truths rationally.

. . . because "water" signifies natural truths;
likewise "a river";
"fish," those who are in natural truths;
and so "fishermen" signify those
who investigate and teach truths.

___________________________________

When the Writings were originally published,
they were published for the general public. 
When ISB was published, it was sent only to universities.