It is fatal to enter any war without the will to win it
若无求胜的意志，参战是危险的
It takes courage and a strong will to win a war.
打胜仗需要勇气和坚强的意志力。
If you are not prepared to fight,
如果还没准备好要应战，
don’t start one, for if you do so, you will surely lose.
最好不要开打，因为如果你这么做，一定会打败仗。
As the saying goes, "It is fatal to enter any war without the will to win it. "
俗话说：“若无求胜的意志，参战是危险的。”