Translate the following English sentence to French:
"Once again I heard him out, but let me take the liberty of saying that there is one right that I am not prepared to grant him, and that is the right to claim to be speaking on behalf of General de Gaulle."
Là aussi, je l'ai entendu, mais je me permets de lui dire qu'il y a un seul droit que je ne lui reconnais pas, c'est celui de parler au nom du général de Gaulle.