1. Cintā Sutta.-Unprofitable reasoning about the world, life, etc., should be abandoned. Thoughts about Ill, etc., should be cultivated. S.v.418.
2. Cintā Sutta.-Once a man, having left Rājagaha, came to the Sumāgadhā Lotus Pond and started speculating about the world. He then saw a whole army entering a lotus-stalk. Thinking himself mad, he returned to the town, where he told people what he had seen; they confirmed his belief in his madness. But, in fact, said the Buddha, what he saw was real; he saw the Asura-host running away from the Devas and escaping through a lotus stalk. It is, therefore, unprofitable to speculate about the world. S.v.446f.