Espionage for the most part involves finding a person who knows something or has something that you can induce them secretly to give to you. That almost always involves a betrayal of trust.
Some wisdom you must learn from one who's wise.
To a father growing old nothing is dearer than a daughter.
Cleverness is not wisdom.
Ten soldiers wisely led will beat a hundred without a head.
I know I got to eat. But I got to live too.
The best and most beautiful things in the world...
Good advice is always certain to be ignored, but...
