Related Clues:

• Foundation or main principle
• The logical basis of some thing or action
• Foundation or support, or a main principle
• Foundation of a theory or process
• Principle on which a theory is founded
• Underlying support for a theory
• Is that the reason behind having to restrict the beer allowance?
• If your little sister has her degree, that gives her something to build on
• The theory behind this is to allow only so much beer, it seems
• Allowed only so much beer, perhaps, and with reason
• The reasoning behind this is only to allow so much beer
• The 24 across way to get one into a fish
• Limit the consumption of beer?
• A degree gives a foundation to one's little relative
• That's the reason for the 10 across of a northern beer