Simply we should not calculate the brighter side. There is darker side also. We should always think, "If there is some thief, if there is some rogue, they cheat us, then what precaution I am going to take?" This is intelligence. If I simply calculate that "In this business I will make so much profit." In the meantime, somebody comes and cheats me and go away, then... Therefore upayan cintayet prajña apayan ca cintayet. Darker side also should be thought of. That is intelligence. Just like they are doing. After calculating the darker side—enemy means darker side—they can defeat me at any moment. That is darker side.