Translate the following English sentence to French:
"The most important thing, to my mind, is the need to change people's perceptions, not simply with a view to loosening purse strings but also with a view to engendering the level of voluntarism that is essential to the protection of our forests."
Il serait intéressant d' induire un changement de mentalité. Non pas tellement pour avoir de l' argent, mais pour augmenter le volontariat, condition nécessaire à la protection des forêts.