The Art of War by active 6th century B.C. Sunzi

14. Therefore the good fighter will be terrible in his onset, and

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."]