It means that a group of people/a civilization that isn't/does not become open to new ways, and doesn't seek and desire new knowledge, is surely destined to be destroyed eventually. As progress and adaptation is probably the best way to secure your survival.
The Cabinet includes the Vice President and the heads of 15 executive departments
M2 is easily accessible funds, money market accounts, and saving instruments. It's basically ALL funds in M1 plus Money Market Accounts and Saving Instruments.
Multilateral
Please correct me if I'm wrong :)
The correct answer to this question is the historical method. This set of rules and guidelines help historians place arguments in historical context. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.