Be advised that all flatterers live at the expense of those who listen to them.

People who make no noise are dangerous.

Those who make the worst use of their time are the first to complain of its shortness.

There is no road of flowers leading to glory.

Everyone calls himself a friend, but only a fool relies on it; nothing is commoner than the name, nothing rarer than the thing.

It is a double pleasure to deceive the deceiver.