A good heart is the sun and the moon; or, rather, the sun and not the moon, for it shines bright and never changes.
William ShakespeareDo not swear by the moon, for she changes constantly. Then your love would also change.
William ShakespeareHer virtues, graced with external gifts, Do breed love's settled passions in my heart; And like as rigour of tempestuous gusts Provokes the mightiest hulk against the tide, So am I driven by breath of her renown Either to suffer shipwreck or arrive Where I may have fruition of her love.
William Shakespeare