It is an ambassador's duty to stand up for his nation's foreign policy in any era and under any government whatsoever. Ambassadors are, in the full meaning of the term, titled spies.
It is a mistake, too, to say that the face is the mirror of the soul. The truth is, men are very hard to know, and yet, not to be deceived, we must judge them by their present actions, but for the present only.
Never lose sight of this maxim, that you should establish your cantonments at the most distant and best protected point from the enemy, especially where a surprise is possible. By this means you will have time to unite all your forces before he can attack you.
Each state claims the right to control interests foreign to itself when those interests are such that it can control them without putting its own interests in danger. ... other powers only recognize this right of intervening in proportion as the country doing it has the power to do it.