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Albert Einstein was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for developing the theory of relativity, but he also made important contributions to the development of the theory of quantum mechanics. Relativity and quantum mechanics are together the two pillars of modern physics. His mass–energy equivalence formula E = mc2, which arises from relativity theory, has been dubbed "the world's most famous equation". His work is also known for its influence on the philosophy of science. He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory. His intellectual achievements and originality resulted in "Einstein" becoming synonymous with "genius".
Galileo Galilei was an Italian naturalist, physicist, mechanic, astronomer, philosopher, and mathematician.
Using his own improved telescopes, Galileo Galilei observed the movements of the Moon, Earth's satellites, and the stars, making several breakthrough discoveries in astronomy. He was the first to see craters on the Moon, discovered sunspots and the rings of Saturn, and traced the phases of Venus. Galileo was a consistent and convinced supporter of the teachings of Copernicus and the heliocentric system of the world, for which he was subjected to the trial of the Inquisition.
Galileo is considered the founder of experimental and theoretical physics. He is also one of the founders of the principle of relativity in classical mechanics. Overall, the scientist had such a significant impact on the science of his time that he cannot be overemphasized.
Adam Smith was a Scottish economist and philosopher, one of the founders of economic theory as a science.
After graduating from Balliol College at Oxford University, Smith in 1751 became Professor of Logic and then Professor of Moral Philosophy at the University of Glasgow. And at the same time worked on publishing some of his lectures. His book The Theory of Moral Sentiments was published in 1759. As a philosopher, he wrote on a wide range of subjects: moral philosophy, jurisprudence, rhetoric and literature, and the history of science. He was one of the leading figures of the Scottish Enlightenment. Adam Smith also studied the social forces that give rise to competition, trade, and markets. On his trip to France, he met François Kenet and the Physiocrats.
In late 1763, Smith was given the position of tutor to the young Duke of Buccleugh and resigned his professorship. He began to socialize extensively with the intellectuals of his day, aristocrats and scholars, members of the government and representatives of big commerce, and gradually moved from philosophy to economics.
Adam Smith published his most important work, An Inquiry into the Nature and Causes of the Wealth of Nations (abbreviated as The Wealth of Nations), in 1776. It was the first major exposition of the theory of free trade, where the author advocates individual liberty and the accumulation of wealth, while strongly advocating moral justice and duty to society. He describes a system of natural liberty and justice that seeks to raise the standard of living of the general population by equating higher wages with a healthier and more productive labor force. He proves his belief that the limits to growth are political, not economic, and outlines the principles that should guide lawmakers. Smith also lays out a history of economic theory, a historical analysis of the wealth of nations, including China, and predictions for the future.
"The Wealth of Nations" was the first and still remains the most important book on political economy. And Adam Smith himself is considered the founder of classical political economy; he introduced the term "the invisible hand of the market." Although he did not use the word "capitalism", he is called the father of modern capitalism.
