prompt in his decision.
[The word "decision" would have reference to the measurement of
distance mentioned above, letting the enemy get near before striking.
But I cannot help thinking that Sun Tzŭ meant to use the word in a
figurative sense comparable to our own idiom "short and sharp." Cf.
Wang Hsi’s note, which after describing the falcon’s mode of attack,
proceeds: "This is just how the ‘psychological moment’ should be seized
in war."]