3.] In 621 A.D., Li Ching was sent from K’uei-chou in Ssu-ch’uan to reduce the successful rebel Hsiao Hsien, who had set up as Emperor at the modern Ching-chou Fu in Hupeh. It was autumn, and the Yangtsze being then in flood, Hsiao Hsien never dreamt that his adversary would venture to come down through the gorges, and consequently made no preparations. But Li Ching embarked his army without loss of time, and was just about to start when the other generals implored him to postpone his departure until the river was in a less dangerous state for navigation. Li Ching replied: "To the soldier, overwhelming speed is of paramount importance, and he must never miss opportunities. Now is the time to strike, before Hsiao Hsien even knows that we have got an army together. If we seize the present moment when the river is in flood, we shall appear before his capital with startling suddenness, like the thunder which is heard before you have time to stop your ears against it. [See VII. § 19, note.] This is the great principle in war. Even if he gets to know of our approach, he will have to levy his soldiers in such a hurry that they will not be fit to oppose us. Thus the full fruits of victory will be ours." All came about as he predicted, and Hsiao Hsien was obliged to surrender, nobly stipulating that his people should be spared and he alone suffer the penalty of death.] take advantage of the enemy’s unreadiness, make your way by unexpected routes, and attack unguarded spots. 20. The following are the principles to be observed by an invading force: The further you penetrate into a country, the greater will be the solidarity of your troops, and thus the defenders will not prevail against you. 21. Make forays in fertile country in order to supply your army with food. [Cf. _supra_, § 13. Li Ch’uan does not venture on a note here.] 22. Carefully study the well-being of your men, [For "well-being", Wang Hsi means, "Pet them, humor them, give them plenty of food and drink, and look after them generally."] and do not overtax them. Concentrate your energy and hoard your strength.