Who has power over his foe and does not slay him is his own enemy.

With a stone in the hand and a snake on a stone
It is folly to consider and to delay.

Others, however, enounce a contrary opinion and say that it is preferable to respite captives because the option of killing or not killing remains; but if they be slain without delay, it is possible that some advantage may be lost, the like of which cannot be again obtained.

It is quite easy to deprive a man of life.
When he is slain he cannot be resuscitaied again.
It is a condition of wisdom in the archer to be patient
Because when the arrow leaves the bow it returns no more.