The frequently expressed view that written constitutions are inherently more liberal than unwritten ones is false.
Conclusion
Even a written constitution becomes a liberal constitution only when it is interpreted and applied in a liberal way.
Evidence
A written constitution is just paper with words on it until those words are both interpreted and applied. Properly understood, a constitution is the sum of those procedures through which state power is legitimately exercised and limited.
Evaluate
The conclusion makes liberal interpretation and application a necessary condition for a written constitution to count as liberal. So a constitution's text alone — without interpretation and application — cannot make the constitution liberal.
Goal
Identify the answer that follows directly from the necessity claim — namely, that text alone cannot establish whether a constitution is liberal.