Chesterfield, would be patron of Dr. Samuel Johnson. Wrote a practically
sensible book of advice on how to live and make a career for his bastard
son, that is cynical, realistic and well-written.
Chesterfield's dictum comes from this book and reads "If you want to
be pleased, please!". This is true and realistic about human beings,
as is the equally valid advice "If in Rome, do as the Romans do",
and its logical equivalent "if among cannibals, do as cannibals do".
Chesterfield's dictum may be taken as the bronze rule of morals, to
be contrasted with the golden rule: "Do not do to others as you
would not be done to".