Hence the saying: The enlightened ruler lays his plans well ahead; the
good general cultivates his resources.
As Sun Tzŭ quotes this jingle in support of his assertion in § 15,
we must suppose 修之 to stand for 修其功 or something analogous.
The meaning seems to be that the ruler lays plans which the
general must show resourcefulness in carrying out. It is now
plainer than ever that 修 cannot mean “to reward.” Nevertheless, Tu
Mu quotes the following from the 三略, ch. 2: 霸者制士以權結士以
信使士以賞信衰則士疏賞虧則士不用命 “The warlike prince controls his
soldiers by his authority, knits them together by good faith, and
by rewards makes them serviceable. If faith decays, there will be
disruption; if rewards are deficient, commands will not be
respected.”