Translate the following English sentence to French:
"In my opinion, we should also create a threshold below which two significant components which characterise our economic structure should be placed: small and medium-sized businesses, which bind the European economy together, and social protection, which Europe has always guaranteed to the weakest parts of the economy."
Selon moi, il serait nécessaire de fixer un seuil en dessous duquel insérer deux aspects significatifs de notre tissu économique : les petites et moyennes entreprises, qui constituent le ciment de l'univers économique européen, et la protection sociale, que l'Europe a toujours garantie aux plus faibles.