He who is mistaken in an action which he sincerely believes to be right may be an enemy, but retains our esteem.
Good kings are the only dangerous enemies that modern democracy has and when he has begun by banishing me you may be sure he intends to be a patriot.
But the worst enemy thou canst meet, wilt thou thyself always be; thou waylayest thyself in caverns and forests.
Always keep your foes confused. If they are never certain who you are or what you want, they cannot know what you are like to do next.