This is the 1469th most frequent French word.
certes
Certainly; indeed.
The word 'certes' here is used to emphasize the certainty or acknowledgment of the person's ability within the context.
Certes, il est capable de réussir ce projet.
Certainly, he is capable of succeeding in this project.
'Certes' in this context serves as an acknowledgment of the challenge posed by the choice before transitioning into its necessity.
Ce choix est difficile, certes, mais nécessaire.
This choice is difficult, certainly, but necessary.
The word 'certes' in this phrase is acknowledging the validity or success of the efforts, placing emphasis on the positive outcome.