Social sciences core principles

This actually comes from the National Council on Economic Education; however, has -- as we say -- universal applicability:

• People Choose
• Choices involve costs. All choices. It may be time, it may be pain, it may be money; doesn't matter: it's a cost.
• Subset: the opposite of cost is benefit, a/k/a 'negative cost'
  
• Incentives matter.
  
• Society influences choices and incentives
• Voluntary trade creates wealth. Wealth does not have to be money.
  
• The consequences of choosing are in the future. Would some pow'r ....