Title: Xian Qin ming jia si zi yan jiu
Subjects: School of logicians (Chinese philosophy)
People: Xi Deng (545 B.C.-501 B.C), Shi Hui (approximately 370 B.C.-approximately 310 B.C), Wen Yin (approximately 360 B.C.-approximately 280 B.C), Long Gongsun (active 3rd century B.C)