Complex sentence: He is the most educated of The Gang, having graduated from University of Pennsylvania with a bachelors degree, though it's not known what his degree was in, he mentions that he minored in psychology but failed to achieve his original ambition to become a veterinarian.
Split into simpler sentences: He is the most educated of The Gang, having graduated from University of Pennsylvania with a bachelors degree, though it's not known what his degree was in. He mentions that he minored in psychology but failed to achieve his original ambition to become a veterinarian.