Quotation from: The Art of War

Written by: Sunzi (6th cent. B.C.)

[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 Tzu 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."]