If I can, by a lucky chance, in these uneasy days, rub out...

If I can, by a lucky chance, in these uneasy days, rub out one wrinkle from the brow of care, or beguile the heavy heart of one moment of sadness; if I can, how and then, prompt a happier view of human nature, and make my reader more in good humor with his fellow-beings and himself, surely, I shall not have written in vain.