Translate the following English sentence to French:
"The ingredients of this policy are well known. They are the stimulation of public and private investment, increased investment in research, education and training and the promotion of the spirit of enterprise."
Les ingrédients de cette politique sont connus : relance des investissements publics et privés, investir davantage dans la recherche, investir dans l'éducation et la formation, susciter l'esprit d'entreprise.