XU Zhu, Associate Professor in Department of Philosophy, ECNU. Research interests includes Epistemology, Philosophy of Action, Wittgenstein, and Philosophy of Social Science. The author of Understanding the Social: from Normativity to Mechanism (monograph published in Chinese) and several papers published both in Chinese and in English.WU Tong, Professor of Philosophy of Science and Technology (tenured) in the STS Centre, Tsinghua University. Research interests include philosophy of scientific practice, philosophy of system and complexity, and local knowledge. The author of The Melody of Growth: the Self-Organizing Evolution of Science (monograph published in Chinese) and many influential papers in Chinese philosophy of science and technology.