Sun Zi – The Art of War

Chinese strategy explained : know yourself and the ennemy, use deception, spies, and "win with ease". Tr. Giles (en, annotated) and Amiot (fr).

Introduction
I. Laying Plans
II. Waging War
III. Attack by Stratagem
IV. Tactical Dispositions

V. Energy
VI. Weak Points and Strong
VII. Maneuvering
VIII. Variation in Tactics
IX. The Army On The March

X. Terrain
XI. The Nine Situations
XII. The Attack By Fire
XIII. The Use of Spies

The Use Of Spies

Sunzi XIII. 14.

If a secret piece of news is divulged by a spy before the time is ripe, he must be put to death together with the man to whom the secret was told.1

1. Word for word, the translation here is: "If spy matters are heard before [our plans] are carried out," etc. Sun Tzu's main point in this passage is: Whereas you kill the spy himself "as a punishment for letting out the secret," the object of killing the other man is only, as Ch`en Hao puts it, "to stop his mouth" and prevent news leaking any further. If it had already been repeated to others, this object would not be gained. Either way, Sun Tzu lays himself open to the charge of inhumanity, though Tu Mu tries to defend him by saying that the man deserves to be put to death, for the spy would certainly not have told the secret unless the other had been at pains to worm it out of him."

Giles XIII.19.

Après avoir enfanté quelque projet, si vous apprenez que votre secret a transpiré, faites mourir sans rémission tant ceux qui l'auront divulgué que ceux à la connaissance desquels il sera parvenu. Ceux-ci ne sont point coupables encore à la vérité, mais ils pourraient le devenir. Leur mort sauvera la vie à quelques milliers d'hommes et assurera la fidélité d'un plus grand nombre encore.

Amiot

Sun Zi XIII. 14.