No one demands more caution than a spy, and when someone has the skeleton key to minds, counter him by leaving the key of caution inside, on the other side of the keyhole.
Do pleasant things yourself, but unpleasant things through others.
It is impossible to live without brains, either one's own or borrowed.
Few are the friends of a mans self, most those of his circumstances.
Maturity is the slowness in which a man believes.
Fortunate people often have very favorable beginnings and very tragic endings. What matters isn't being applauded when you arrive - for that is common - but being missed when you leave.