Translate the following English sentence to French:
"By way of introduction, I would like to stress that the Commission takes a positive view of the principles behind many of the amendments, such as the system of historical references for the allocation of quotas."
Je voudrais commencer par souligner que la Commission se montre favorable aux principes sur lesquels se basent de nombreuses propositions d'amendement, par exemple le système de gestion des contingents sur la base de références historiques.