1586年,伽利略说服他父亲允许他放弃医学学业,他还没拿到学位便从比萨大学辍学。在佛罗伦萨,伽利略继续自学数学、文学和科学。他在佛罗伦萨学院进行了一系列关于但丁的《神曲》的公开讲座。1589年,由于需要得到一个长期职位,伽利略利用他朋友的影响力得到了在比萨大学担任数学讲师职务。仅仅3年之后,伽利略再次通过朋友的帮助到帕多瓦大学担任数学教授。伽利略在帕多瓦后迅速成名,成为一名机智而富有幽默感 In 1586, when Galileo persuaded his father to allow him to abandon medical studies, he dropped out of his university at Pisa University without a degree. In Florence, Galileo continued to study mathematics, literature and science. He conducted a series of public lectures at Florence College on Dante’s Divine Comedy. In 1589, Galileo became a math lecturer at the University of Pisa using the influence of his friends because of the need to obtain a permanent position. Just three years later, Galilei again with the help of friends to Padua University as a professor of mathematics. Galileo quickly became famous in Padua, a wit and rich sense of humor