translate English to French: Indeed, his entire adult career over the past 40 years has been at the exclusive service of this Organization, through the ranks of which he rose until he attained the pinnacle 10 years ago.
En effet, il a consacré les 40 dernières années de sa carrière professionnelle à cette Organisation, dont il a progressivement monté les échelons pour atteindre le sommet il y a 10 ans.