Translate the following English sentence to French:
"It therefore becomes important not only to learn how to be efficient in implementing these guidelines but also to be aware of potential obstacles to their implementation, and always proceed in the knowledge that the Community also has an objective in terms of employment."
Il est, dès lors, important non seulement d'apprendre l'efficacité dans la réalisation de telles orientations, mais également les causes qui les entraveront, en partant toujours de l'hypothèse que l'objectif communautaire actuel est l'emploi.