Sergey Mikhaylovich Brin (; born August 21, 1973) is a Russian American computer scientist and internet entrepreneur who, together with Larry Page, co-founded Google, one of the most profitable Internet companies. According to Hurun Global Rich List 2015 he is jointly one of three people listed as 18th richest in the world (21 overall) with a net worth of US$30 billion. Brin and Page each own about 16 percent of the company. Brin immigrated to the United States with his family from the Soviet Union at the age of 6. He earned his undergraduate degree at the University of Maryland, following in his father’s and grandfather’s footsteps by studying mathematics, as well as computer science. After graduation, he moved to Stanford University to acquire a PhD in computer science. There he met Larry Page, with whom he later became friends. They crammed their dormitory room with inexpensive computers and applied Brin’s data mining system to build a search engine. The program became popular at Stanford and they suspended their PhD studies to start up Google in a rented garage. The Economist newspaper referred to Brin as an “Enlightenment Man”, and as someone who believes that “knowledge is always good, and certainly always better than ignorance”, a philosophy that is summed up by Google’s mission statement “Organize the world’s information and make it universally accessible and useful” and unofficial motto “Don’t be evil”.