Su Zhe
Being an essayist, Su Zhe was especially skilled at Celun (策论), which led him had a special status in Song Dynasty. Compared with his brother Su Shi's talent, he was indeed weak in some aspects. However, according to what Su Shi had said about him, Su Zhe's accomplishments in essay did reach to a certain point that would never end. Except Celun, Su was also good at political comments and historical essays. For example, in his work"Letter To Emperor", he pointed out that the most important factor that caused the society in ferment was that people had been impoverished for such a long time (今世之患, 莫急于无财). Same as both of his father and his brother, all his historical essays were amied at criticizing the social condition in order to attract the emperor's attention to build a better environment for further development.