At fourteen, he entered Harvard University. His talents, perseverance, gentleness and courage, here gained him unrivalled popularity. That he did not acquire or preserve the regard of his fellow students by any base compliances with vice or disorder, the following incident shews. Some of them had once resolved on some breach of the laws, which, from the sturdiness of his principles, they knew that young Warren would disapprove, and by his powerful influence probably prevent. They therefore met in an upper room of the college, to arrange their plans secretly; fastening the door against him. He found what they were about; and seeing the window of their room open, crept out, through a _scuttle door_, upon the roof--crawled to the eaves--and there, seizing a water-spout nearly rotten with age, he swung and slid down by it to the window, and unexpectedly sprang in amongst the conspirators. The spout, at the instant of his quitting it, fell with a crash to the ground, and was shivered to pieces. Only saying, in answer to the exclamations of astonishment that burst from his comrades, "it stayed up just long enough for my purpose," he commenced an expostulation against their intended misdemeanor, and _succeeded in diverting them from it_. On leaving college, he studied medicine, and began to practise at the age of 23, just previously to a visit of the small pox to Boston, with those fearful ravages which usually attended its march, before the virtues of vaccination were known. Dr. Warren's judgment, tenderness, and skill, made him pre-eminently successful in treating the disease. And it is said, that his gentle and courteous deportment completely neutralized the usual tendency of such professional success, to enkindle the jealousy of his brethren. His mild features and winning smile, true indexes, for once, to the soul within, gained every heart; his knowledge and talents added respect to love. Thus, by the same qualities which had distinguished him at school and at college, did he acquire among his fellow townsmen an influence which no other man of his age and day possessed.