Mr. Lely, I desire you would use all your skill to paint my picture truly like me, and not flatter me at all; but remark all these roughnesses, pimples, warts, and everything as you see me, otherwise I will never pay a farthing for it.

As quoted in Anecdotes of Painting in England (1762-1771) by Horace Walpole often credited as being the origin of the phrase "warts and all". Variant: Paint me as I am. If you leave out the scars and wrinkles, I will not pay you a shilling.