True friendship destroys envy, and true love destroys coquetterie.

It is not enough that we should succeed, but our friends must fail as well.

Sometimes, occasions occur in life which demand you to be a little foolish in order to skillfully extricate yourself.

Selfishness is the grand moving principle of nine-tenths of our actions.

In all professions each affects a look and an exterior to appear what he wishes the world to believe that he is. Thus we may say that the whole world is made up of appearances.

We are more interested in making others believe we are happy than in trying to be happy ourselves.

A clever man should handle his interests so that each will fall in suitable order of their value.