In writing advertising it must always be kept in mind that the customer often knows more about the goods than the advertising writers because they have had experience in buying them.
Courtesies cannot be borrowed like snow shovels; you must have some of your own.
One may walk over the highest mountain one step at a time.
Courtesy is the one coin you can never have too much of or be stingy with.
When a customer enters my store, forget me. He is king.
Let those who follow me continue to build with the plumb of honor, the level of truth, and the square of integrity, education, courtesy and mutuality.