Answer :
The concept illustrated by the aspects of the Twelve Tables mentioned in the question is the "rule of law."
1. **Rule of Law**: The Twelve Tables represent the first written code of laws in Rome, which provided a set of rules that applied to all citizens, both Romans and non-Roman citizens. This concept ensured that everyone was subject to the same laws, promoting equality and fairness.
2. **Equal Treatment**: The support for equal treatment of all citizens under the Twelve Tables signifies that the law was meant to be applied impartially, without favoritism or discrimination based on social status or background.
3. **Legal Framework**: By establishing laws that governed various aspects of Roman life, the Twelve Tables laid the foundation for a system where people could rely on a consistent legal framework to resolve disputes and maintain order in society.
4. **Enforcement**: The enforcement of laws prescribed by the Twelve Tables aimed to create a sense of predictability and accountability, emphasizing that individuals, regardless of their status, were bound by the same legal standards.
In conclusion, the concept exemplified by the Twelve Tables is the "rule of law," which emphasizes the idea that laws should be clear, fair, and applicable to all members of society, ensuring justice and order in a community.