4 ideas
A European ship sailing from Peru toward China and Japan is blown off course in the South Sea and, out of food, reaches the unknown island of Bensalem. The crew is confined to a Strangers' House, questioned, and treated courteously. A Father of Salomon's House then describes to the narrator its caves, towers, lakes, engines and laboratories, and the account breaks off unfinished with the words "The rest was not perfected."
Salomon's House assigns each step of discovery to a separate role. Merchants of Light gather knowledge abroad, Depredators mine it from books, Mystery-men collect craft techniques, and Pioneers try new experiments. Compilers tabulate the results, Dowry-men extract practical uses, Lamps design the next experiments, Inoculators carry them out, and Interpreters of Nature raise the findings into general axioms. Discovery becomes a pipeline of specialised functions rather than the work of a lone genius.
Every twelve years Bensalem secretly sends Fellows abroad under assumed names to bring back books, instruments and experiments, while its own laws keep outsiders from learning anything about the island. Its trade is in light, meaning knowledge, not in goods. This asymmetry lets a closed society absorb the world's discoveries without revealing its own existence or advantages.
The Fellows of Salomon's House meet to decide which inventions will be published and which will be kept secret. They swear an oath to conceal some findings even from the state.