TASK DEFINITION: In this task, you are given a sentence in English and your task is to translate it into Spanish. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).
PROBLEM: Why not?

SOLUTION: ¿Por qué?

PROBLEM: The European Commission' s belief that, in all quarters of the Union, legislation will, almost as a matter of course, be interpreted in the same way, is what, within catholic circles, we term "foolhardy," and this is not allowed.

SOLUTION: La confianza de la Comisión Europea en que la interpretación de la legislación se hará casi automáticamente idéntica en todas las regiones, es lo que llamamos en el catolicismo "fe ciega" y eso está prohibido.

PROBLEM: The groups are: the efficiency of the rules, the risk of renationalisation, consistent application of the rules and legal certainty. I will take these very quickly one at a time.

SOLUTION:
Voy a examinarlos uno a uno muy rápidamente.