How to Read This Library
These books disagree with each other, and that is the point. The courtesy manuals preach virtue while teaching appearance management. The moral philosophers condemn the very lending practices that built half the great fortunes. Read them together and the contradictions stay visible, which is exactly how you want them.
A working method: take one court text, one household text, and one text on the ethics of profit, and read them in the same season. Castiglione, Beeton, and Bacon make a fine first flight.
What emerges is a consistent worldview. Wealth is protected less by hustle than by reputation, selective association, marital stability, and knowing where profit stops being honorable. Some of it will strike you as wisdom. Some of it should make you uncomfortable. The families who lasted held both at once.