A story with a moral appended is like the bill of a mosquito. It bores you, and then injects a stinging drop to irritate your conscience. - O. Henry

Eight dollars a week or a million a year — what is the difference? A mathematician or a wit would give you the wrong answer.

I see the game now. You can't write with ink, and you can't write with your own heart's blood, but you can write with the heart's blood of some one else. You have to be a cad before you can be an artist.

O’Henry 'The Plutonian Fire' (1905)

You can't appreciate home till you've left it, money till it's spent, your wife till she's joined a women's club, nor Old Glory till you see it hanging on a broomstick on the shanty of a consul in a foreign town.