Secrecy is the first essential in affairs of state.
If you give me six lines written by the hand of the most honest of men, I will find something in them which will hang him.
Did you think I was immortal?
I have never had any [enemies] other than those of the state.
We may employ artifice to deceive a rival, anything against our enemies.
I have the consolation of leaving your kingdom in the highest degree of glory and of reputation.