2A.2 Gongsun Chou said, “On the one hand you have said, ‘Wherever the will leads the qi will follow.’ But you have also said, ‘Grasp your will and do not dissipate your qi.’ Is there not an inconsistency?”
Mencius_iENO 2A2 p.39

6B.5 Wuluzi was delighted. “I have detected an inconsistency!” he said. He posed a question to Mencius: “When you went to Ren you visited Jizi. However, when you went to Qi you did not visit Chuzi; was this because he was prime minister?”
Mencius_iENO 6B5 p.117