Sweat more during peace: bleed less during war
You can prevent your opponent from defeating you through defense, but you cannot defeat him without taking the offensive.
Do not press an enemy at bay.
Know thy self, know thy enemy. A thousand battles, a thousand victories.
According to my assessment, even if you have many more troops than others, how can that help you to victory?
Act after having made assessments. The one who first knows the measure of far and near wins - this is the rule of armed struggle.