No one is too big to be courteous, but some are too little

We must be as courteous to a man as we are to a picture, which we are willing to give the advantage of a good light.

Life is not so short but that there is always time for courtesy.

As we are, so we do; and as we do, so is it done to us; we are the builders of our fortunes.

Life is not so short but that there is always time for courtesy

If I know your sect, I anticipate your argument