According to the custom of the people of Geneva, which is to throw their children on their own resources very early in life, the parents of Necker sent him to Paris at the age of fifteen, as clerk in the banking-house of Vernet. He quickly displayed talents for business, and, becoming a partner in the house of Thellusson, laid the foundation of his fortune. He quitted the bank, as better speculations opened, when he was named resident for the republic of Geneva at the French court. The duke de Choiseul liked and advanced him. He named him administrator of the French East Indian company; and at this post, and by speculations in the English funds, he made a large private fortune. His early years were devoted to these pursuits, and he was so absorbed by them that he enjoyed few of the pleasures of youth. He, meanwhile, acquired both experience and knowledge in finance. Wishing to bring himself into notice, he wrote the "Eloge de Colbert" in 1773, which gained the prize in the French academy. His essay on the corn laws increased his reputation. Maurepas consulted him when alarmed by the disastrous state of the finances; and, by degrees, all eyes turned towards him as the man who alone could save France from bankruptcy, through his knowledge of business, and the great resources which his plans opened in the regulation of the taxation and expenditure of the country. As difficulty, distress, and alarm gathered thick and dark round the government, and the expectation of a war rendered it necessary to supply the requisite expenses, the hopes placed in Necker caused him, in 1777, to be raised to the office of director-general.