Yīgè rén de xuéshí bùjǐn láizì shūběn, yě láizì shíjiàn.
A person's knowledge comes not only from books but also from practice.
Tips
usage
学识 refers to breadth and depth of knowledge acquired through study. It is more formal than 知识 (zhīshí) and implies scholarly depth. Often collocated with 渊博 (yuānbó, 'profound and broad').