Courtesy is really nothing more than a form of friendliness. It is amazing what a warming influence it can have on an otherwise dreary world. It has been said that a rise of one degree Fahrenheit in the mean annual temperature of the globe would free both polar regions from their ice. it is thrilling to contemplate what frigidity might be dispelled in the world of human relations if people made just a little better effort to be friendly.
— M. Bartos