 He attended high school at Evergreen Park Community High School . Kaczynski excelled academically , but found the mathematics too simple during his second year . Sometimes he would cut classes and write in his journal in his room . During this period of his life , Kaczynski became obsessed with mathematics , spending prolonged hours locked in his room practicing differential equations . Throughout secondary schooling , Kaczynski had far surpassed his classmates , able to solve advanced Laplace transforms before his senior year . He was subsequently placed in a more advanced mathematics class , yet still felt intellectually restricted . Kaczynski soon mastered the material and skipped the eleventh grade . With the help of a summer school course for English , he completed his high school education when he was 15 years old . He was encouraged to apply to Harvard University , and was subsequently accepted as a student beginning in 1958 at the age of 16 . While at Harvard , Kaczynski was taught by famed logician Willard Van Orman Quine , scoring at the top of Quine 's class with a 98 @.@ 9 % final grade . 
