Newton returned to Cambridge in 1667, completed his studies, and at the age of 27, became Lucasian Professor of Mathematics there. He was given this position on the recommendation of
his predecessor, and held it for 27 years.

1667年，牛顿回到剑桥，完成了他的学业，并在27岁时成为剑桥学院的数学教授。他是通过前任教授的推荐而获此教职，担任了27年之久。

(短文节选,本篇始于：大科学家牛顿)