Richard, was born at Dieppe the 15th May 1638. He began his studies among the priests of the Oratory in that city, but quitted their society in a short time. From Dieppe he went to Paris, where he made great progress in the study of the oriental languages. Some time afterwards he joined the society of the Oratory again, and became a priest of it in 1660. In 1670 he published some pieces of a smaller kind. In 1678 his Critical History of the Old Testament appeared, but was immediately suppressed by the intrigues of Messieurs du Port Royal. It was reprinted the year after, and its excellence soon drew the attention of foreigners; an edition of it was accordingly published at Amsterdam in Latin, and at London in English.

He died at Dieppe in 1712, at the age of 74.

He certainly possessed a vast deal of learning; his criticism is exact, but not always moderate; and there reigns in his writings a spirit of novelty and singularity which raised him a great many adversaries. The most celebrated of these were Le Clerc, Vossius, Jurieu, Du Pin, and Boffuet. Simon wrote an answer to most of the the books that were published against him, and displays a pride and obstinacy in his controversial writings which do him little honour.

He was the author of a great many books. The following are the principal: 1. The Ceremonies of the Jews, translated from the Italian of Leo of Modena, with a supplement concerning the sects of the Carraites and Samaritans. 2. L'Histoire Critique du Vieux Testament, "The Critical History of the Old Testament." This is a very important work, and deserves the attention of every clergyman. He sometimes, however, deviates from the road of integrity, to serve the cause of the church of Rome, particularly in his endeavours to prove the uncertainty of the Hebrew language. These passages have been very justly exposed and confuted by Dr Campbell, in his ingenious Preliminary Dissertations to his new Translation of the Gospels. 3. Critical History of the Text of the New Testament. 4. Critical History of the Versions of the New Testament. 5. Critical History of the principal Commentators on the New Testament. 6. Inspiration of the Sacred Books. 7. A translation of the New Testament. This book was censured by Cardinal Noailles and Bossuet. 8. The History of the rise and progress of Ecclesiastical Revenues, which is commended by Voltaire, as is his Critical History of the Old Testament. It resulted from a quarrel with a community of Benedictines. 9. A new select Library, which points out the good books in various kinds of literature, and the use to be made of them. 10. Critical History of the Belief and Customs of the Nations on the Levant. 11. Critical Letters, &c.