English translation:

• Clarity: The Constitution should be written in clear and simple language that is easy for the general public to understand. This helps ensure that the Constitution is accessible to all citizens and that its principles can be easily upheld.

• Flexibility: A Constitution should be flexible enough to adapt to changing circumstances and evolving societal values. This can be achieved through the inclusion of a provision for amendment or through the use of broad and general language. (Reference: Kommers, D. P. (1997). The constitutional jurisprudence of the Federal Republic of Germany. Duke University Press.)

• Separation of powers: The Constitution should establish a system of separation of powers between the different branches of government. This helps prevent the concentration of power in any one branch and ensures that the government is accountable to the people. (Reference: Montesquieu, C. (1989). The spirit of the laws. Cambridge University Press.)

• Limited government: The Constitution should limit the power of government and protect the rights of the individual. This can be achieved through the inclusion of a bill of rights or a similar document that outlines the basic rights and freedoms of citizens. (Reference: Mill, J. S. (1991). On liberty. Cambridge University Press.)

• Popular sovereignty: The Constitution should be founded on the principle of popular sovereignty, which holds that the people are the ultimate source of political power. This can be reflected in the Constitution through the inclusion of provisions for direct democracy or through the establishment of a representative democracy. (Reference: Rousseau, J. (1997). The social contract and Discourses. Everyman's Library.)

• Federalism: In case of a federal system, the Constitution should clearly define the powers of the central government and the states, and establish a system of checks and balances to ensure that the power is divided and distributed equitably. (Reference: Madison, J. (1999). Federalist Papers. Penguin Classics)

• Consistency: The Constitution should be consistent with the country's history, culture, and values. This helps ensure that the Constitution is accepted and embraced by the people. (Reference: Sunstein, C. R. (1991). The partial constitution. Harvard University Press.)

• Avoiding ambiguity: The Constitution should avoid ambiguity and should be specific in its terms and phrases, as this will help to avoid future disputes and legal challenges. (Reference: Ackerman, B. (1991). We the people: Foundations. Harvard University Press.)