Where necessary, Diderot expanded its field of knowledge.
From 1754 to 1757 he regularly attended the chemistry lectures of Guillaume-François Rouelles.
Diderot was first admitted to the Lycée Louis-le-Grand in Paris, then moved to the Jansenist Collège d’Harcourt, graduating in 1732 as magister artium.
He failed to join the planned theological studies, but completed his studies at the Sorbonne on 6 August 1735 as bachelor. When he gave up this post in 1737, his father stopped making regular financial contributions. Diderot was enthusiastic about the theatre but he was also very interested in mathematics, so he met the mathematician and philosopher Pierre Le Guay de Prémontval and attended his lectures in 1738.
Diderot now lived four years on writing commissions, so he wrote sermons for clergymen and worked as a tutor for a rich financier, while learning English. Diderot later took on translation activities from English into French and learned English using a Latin-English dictionary.
In 1742 he translated the “No man has received from nature the right to give orders to others.“There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation.Observation collects facts; reflection combines them; experimentation verifies the result of that combination.André François Le Breton, a bookseller and printer, had originally thought of a pure translation of the British , published in 1728 and edited by Ephraim Chambers.In April 1745 Le Breton applied for a royal printing privilege for a multi-volume work translated into French, the Encyclopédie, which was granted on 21 January 1746 and Denis Diderot was to become her translator.Freedom is a gift from heaven, and every individual of the same species has the right to enjoy it as soon as he is in enjoyment of his reason.”).Shaftesbury’s ideas strongly influenced the French Enlightenment.Only income from his father’s inheritance came from Langres.Dmitri Alexeyevich Golitsyn and Grimm saved the situation.Diderot also contributed to literature by challenging conventions of structure and content with works such as Jacques le fataliste et son maître, Le Neveu de Rameau (Rameau's Nephew), and Règrets sur ma vieille robe de chamber.He announced the principles of a new drama, the serious, domestic, bourgeois drama of real life, in contrast to the stilted conventions of the classic French stage.