The youngest student ever admitted to Mexico's National Autonomous University wouldn't call himself a "genius."\r\nCarlos Santamaria Diaz, a 12-year-old who will begin classes for an undergraduate degree in biomedical physics Monday, was dwarfed by the upholstered blue chair he sat in to answer reporters' questions Friday.\r\nWith his feet barely brushing the floor, he laughed out loud and shook his head when a reporter asked if he considered himself a genius.\r\n"I don't like to use that word," he said.\r\nCarlos passed the university's entrance exam and has already done preparatory work at the university's school of chemistry in its genetics sciences center.\r\nThe boy from western Guadalajara grew bored with public school at an early age and turned to the web where he taught himself calculus and physics. By the age of nine, he participated in university programs in analytical chemistry, biochemistry and biology.\r\nNervously running his hands through his hair and speaking passionately of finding cures for rare diseases, his behavior seemed typical of a confident albeit young college student until the university's photographer asked him to pose with a stuffed mascot and the boy emerged.\r\nWhen asked if he ever felt isolated because of his intelligence, Carlos shrugged off the question: "The truth is, no, I feel like the university has been very good to me, especially the chemistry faculty."\r\nHis mother Arcelia Diaz said that like any mom she was proud of her son.\r\nCarlos offered advice to Mexico's President-elect Andres Manuel Lopez Obrador: "First off, I would tell him not to make the same mistakes as the previous presidents."\r\nPoliticians should "take care of the country like they take care of themselves," he said. "This a country filled with people who have dreams and at the same don't have any dreams because they don't have any opportunities."\r\nThe university said Carlos would be treated like any other student, with no special privileges or benefits.