Translate the following English sentence to French:
"We must move beyond what has been reactive behaviour, that is to say, behaviour that has worked on the action-reaction principle, and move towards an approach which is ambitious and which looks to the future."
Nous devons aller au-delà de ce qui a été une action réactive, autrement dit, suivre le principe action-réaction, et passer à des critères d'ambition, de propositions pour l'avenir.