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[I.e., where there are none of the weak points mentioned above.

There is rather a nice point involved in the interpretation of

this later clause. Tu Mu, Ch'en Hao, and Mei Yao-ch'en assume the

meaning to be: "In order to make your defence quite safe, you

must defend even those places that are not likely to be

attacked;" and Tu Mu adds: "How much more, then, those that will

be attacked." Taken thus, however, the clause balances less well

with the preceding-always a consideration in the highly

antithetical style which is natural to the Chinese. Chang Yu,

therefore, seems to come nearer the mark in saying: "He who is

skilled in attack flashes forth from the topmost heights of

heaven [see IV. § 7], making it impossible for the enemy to guard

against him. This being so, the places that I shall attack are

precisely those that the enemy cannot defend.... He who is

skilled in defence hides in the most secret recesses of the

earth, making it impossible for the enemy to estimate his

whereabouts.