One should never fall in the belief that you can find someone to pick you up.
War should be the only study of a prince. He should consider peace only as a breathing-time, which gives him leisure to contrive, and furnishes as ability to execute, military plans.
A sign of intelligence is an awareness of one's own ignorance.
The leader should know how to enter into evil when necessity commands.
Wars begin when you will, but they do not end when you please.
Everyone sees what you appear to be, few experience what you really are.