If a battle can not be won do not fight it.

In desperate position, you must fight.

Victorious warriors win first and then go to war, while defeated warriors go to war first and then seek to win.

Knowledge of the enemy's dispositions can only be obtained from other men.

There is an intelligent way to eat a live frog - I just don't know what it is.

There are only five notes in the musical scale, but their variations are so many that they cannot all be heard. There are only five basic colors, but their variations are so many that they cannot all be seen. There are only five basic flavors, but their variations are so many that they cannot all be tasted. There are only two kinds of charge in battle, the unorthodox surprise attack and the orthodox direct attack, but variations of the unorthodox and the orthodox are endless. The unorthodox and the orthodox give rise to each other, like a beginningless circle-who could exhaust them?

When the soldiers stand leaning on their spears, they are faint from want of food.