意欲突圍示以守固 “To make it seem that I mean to defend the position, whereas my real intention is to burst suddenly through the enemy’s lines” [Mêng Shih]; 使士卒必死戰也 “in order to make my soldiers fight with desperation” [Mei Yao-ch‘ên]; 懼人有走心 “fearing lest my men be tempted to run away” [Wang Hsi]. Tu Mu points out that this is the converse of VII. § 36, where it is the enemy who is surrounded. In 532 A.D., 高歡 Kao Huan, afterwards Emperor and canonised as 神武 Shên-wu, was surrounded by a great army under 爾朱兆 Êrh-chu Chao and others. His own force was comparatively small, consisting only of 2000 horse and something under 30,000 foot. The lines of investment had not been drawn very closely together, gaps being left at certain points. But Kao Huan, instead of trying to escape, actually made a shift to block all the remaining outlets himself by driving into them a number of oxen and donkeys roped together. As soon as his officers and men saw that there was nothing for it but to conquer or die, their spirits rose to an extraordinary pitch of exaltation, and they charged with such desperate ferocity that the opposing ranks broke and crumbled under their onslaught. [See Tu Mu’s commentary, and 北齊書 ch. 1, fol. 6.] On desperate ground, I would proclaim to my soldiers the hopelessness of saving their lives. Tu Yu says: 焚輜重棄糧食塞井夷竈示之無活必殊死戰也 “Burn your baggage and impedimenta, throw away your stores and provisions, choke up the wells, destroy your cooking-stoves, and make it plain to your men that they cannot survive, but must fight to the death.” Mei Yao-ch‘ên says epigrammatically: 必死可生 “The only chance of life lies in giving up all hope of it.” This concludes what Sun Tzŭ has to say about “grounds” and the “variations” corresponding to them. Reviewing the passages which bear on this important subject, we cannot fail to be struck by the desultory and unmethodical fashion in which it is treated. Sun Tzŭ begins abruptly in VIII. § 2 to enumerate “variations” before touching on “grounds” at all, but only mentions five, namely nos. 7, 5, 8 and 9 of the subsequent list, and one that is not included in it. A few varieties of ground are dealt with in the earlier portion of chap. IX, and then chap. X sets forth six new grounds, with six variations of plan to match. None of these is mentioned again, though the first is hardly to be distinguished from ground no. 4 in the next chapter. At last, in chap. XI, we come to the Nine Grounds _par excellence_, immediately followed by the variations. This takes us down to § 14. In §§ 43–45, fresh definitions are provided for nos. 5, 6, 2, 8 and 9 (in the order given), as well as for the tenth ground noticed in chap VIII; and finally, the nine variations are enumerated once more from beginning to end, all, with the exception of 5, 6 and 7, being different from those previously given. Though it is impossible to account for the present state