Translate the following English sentence to French:
"When, finally, we talk about partnership, it is, as Commissioner Nielson said, extremely important to seek out whatever proves to have worked and to support it."
Enfin, lorsque nous parlons de partenariat, il est très important, comme l'a dit M. le commissaire Nielson, de repérer les actions qui ont bien fonctionné et de les soutenir.