When little more than twenty-one years of age he was, through his father's influence with Louis XIV, appointed one of the three advocates-general to the parlement of Paris; and the eloquence and learning which he displayed in his first speech gained him a very high reputation.
[3] In 1700 d'Aguesseau was appointed procurator-general; and in this office, which he filled for seventeen years, he gained the greatest popularity by his defence of the rights of the Gallican Church in the Quietist troubles and in those connected with the bull Unigenitus.
The Scriptures, which he read and compared in various languages, and the jurisprudence of his own and other countries, formed the subjects of his more serious studies; the rest of his time was devoted to philosophy, literature and gardening.
From these occupations he was recalled to court by the advice of Cardinal Fleury in 1727, and on 15 August was named chancellor for the third time, but the seals were not restored to him till ten years later.
[3] When he was at last reinstated in office, he completely withdrew from all political affairs, and devoted himself entirely to his duties as chancellor and to the achievement of those reforms which had long occupied his thoughts.
Besides some important enactments regarding donations, testaments and successions, he introduced various regulations for improving the forms of procedure, for ascertaining the limits of jurisdictions and for effecting a greater uniformity in the execution of the laws throughout the several provinces.