If the enemy thinks of the mountains, attack like the sea; and if he thinks of the sea, attack like the mountains.

Polish your wisdom: learn public justice, distinguish between good and evil, study the ways of different arts one by one.

Crossing at a ford occurs often in a man's lifetime. It means setting sail even though your friends stay in harbour, knowing the route, knowing the soundness of your ship and the favour of the day.

When the enemy starts to collapse you must pursue him without the chance of letting go. If you fail to take advantage of your enemies collapse, they may recover.

Truth is not what you want it to be; it is what it is, and you must bend to its power or live a lie.

If you are not progressing along the true way, a slight twist in the mind can become a major twist. This must be pondered well.

Do not sleep under a roof. Carry no money or food. Go alone to places frightening to the common brand of men. Become a criminal of purpose. Be put in jail, and extricate yourself by your own wisdom.