created that greatly enhanced the development of the humanities and the sciences. Another consequence of the Protestant understanding of man is that the believers, in gratitude for their election and redemption in Christ, are to follow God's commandments. Industry, frugality, calling, discipline, and a strong sense of responsibility are at the heart of their moral code. In particular, John Calvin rejected luxury. Therefore, craftsmen, industrialists, and other businessmen were able to reinvest the greater part of their profits in the most efficient machinery and the most modern production methods that were based on progress in the sciences and technology. As a result, productivity grew, which led to increased profits and enabled employers to pay higher wages. In this way, the economy, the sciences, and technology reinforced each other. The chance to participate in the economic success of technological inventions was a strong incentive to both inventors and investors. The Protestant work ethic was an important force behind the unplanned and uncoordinated mass action that influenced the development of capitalism and the industrial revolution. This idea is also known as the "Protestant ethic thesis". In the book The Central Liberal Truth: How Politics Can Change a Culture and Save It from Itself Lawrence E. Harrison argues that Protestantism along with Confucianism, and Judaism have been more successful in promoting progress, culture and society. Due to the Protestant virtues of education, achievement, work ethic, merit, frugality, and honesty. Some mainline Protestant denominations such as Episcopalians and Presbyterians and congregationalist tend to be considerably wealthier and better educated (having high proportion of graduate and post-graduate degrees per capita) than most other religious groups in America, and are disproportionately represented in the upper reaches of American business, law and politics, especially the Republican Party. Large numbers of the most wealthy and affluent American families as the Vanderbilts, the Astors, Rockefeller, Du Pont, Roosevelt, Forbes, Whitneys, Mellons, the Morgans and Harrimans are Mainline Protestant families. The Boston Brahmins, who were regarded as the nation's social and cultural elites, were often associated with the American upper class, Harvard University; and the Episcopal Church. The Old Philadelphianss were often associated with the American upper class and the Episcopal Church and Quakerism. These families were influential in the development and leadership of arts, culture, science, medicine, law, politics, industry and trade in the United States. The rise of Protestantism in the 16th contributed to the development of banking