From the new perspective of epistemology in a broad sense, FENG Qi discusses the issue of “realm” with the cultivation of “ordinary peoples free personalities” in modern and contemporary China. In this way, his theory of realm becomes an important discourse on philosophy of life and consequently develops WANG Guoweis theory of realm. By comparing FENG and WANG, this paper finds that Chinese philosophers in the 20th century did share some same concern about basic philosophical questions. By analyzing their different answers to the same philosophical question, we can find that different philosophers could use different intellectual resources to elaborate on the same question so as to deepen our thinking. Therefore, FENGs reelaborating on the theory of realm in Chinese traditional philosophy from the perspective of epistemology in a broad sense is valuable spiritual heritage for modern Chinese philosophy.