Answer by taking a quote from the following article:

Theodore Roosevelt Jr. ( ROH-z@-velt; October 27, 1858 - January 6, 1919) was an American statesman and writer who served as the 26th President of the United States from 1901 to 1909. He also served as the 25th Vice President of the United States from March to September 1901 and as the 33rd Governor of New York from 1899 to 1900. As a leader of the Republican Party during this time, he became a driving force for the Progressive Era in the United States in the early 20th century. His face is depicted on Mount Rushmore, alongside those of George Washington, Thomas Jefferson, and Abraham Lincoln.

Roosevelt was mostly home schooled by tutors and his parents. Biographer H. W. Brands argued that "The most obvious drawback to his home schooling was uneven coverage of the various areas of human knowledge". He was solid in geography and bright in history, biology, French, and German; however, he struggled in mathematics and the classical languages. When he entered Harvard College on September 27, 1876; his father advised: "Take care of your morals first, your health next, and finally your studies." His father's sudden death on February 9, 1878, devastated Roosevelt, but he eventually recovered and doubled his activities. He did well in science, philosophy, and rhetoric courses but continued to struggle in Latin and Greek. He studied biology intently and was already an accomplished naturalist and a published ornithologist; he read prodigiously with an almost photographic memory. While at Harvard, Roosevelt participated in rowing and boxing; he was once runner-up in a Harvard boxing tournament. Roosevelt was a member of the Alpha Delta Phi literary society, the Delta Kappa Epsilon fraternity, and the prestigious Porcellian Club; he was also an editor of The Harvard Advocate. In 1880, Roosevelt graduated Phi Beta Kappa (22nd of 177) from Harvard with an A.B. magna cum laude. Biographer Henry Pringle states:  Roosevelt, attempting to analyze his college career and weigh the benefits he had received, felt that he had obtained little from Harvard. He had been depressed by the formalistic treatment of many subjects, by the rigidity, the attention to minutiae that were important in themselves, but which somehow were never linked up with the whole.  After his father's death, Roosevelt had inherited $125,000, enough to live comfortably for the rest of his life. Roosevelt gave up his earlier plan of studying natural science and instead decided to attend Columbia Law School, moving back into his family's home in New York City. Roosevelt was an able law student, but he often found law to be irrational; he spent much of his time writing a book on the War of 1812. Determined to enter politics, Roosevelt began attending meetings at Morton Hall, the 59th Street headquarters of New York's 21st District Republican Association. Though Roosevelt's father had been a prominent member of the Republican Party, the younger Roosevelt made an unorthodox career choice for someone of his class, as most of Roosevelt's peers refrained from becoming too closely involved in politics. Nonetheless, Roosevelt found allies in the local Republican Party, and he defeated an incumbent Republican state assemblyman closely tied to the political machine of Senator Roscoe Conkling. After his election victory, Roosevelt decided to drop out of law school, later saying, "I intended to be one of the governing class."

What school did Roosevelt attend?
Harvard College