Bram Stoker said this quote

Keep it always with you that laughter who knock at your door and say, 'May I come in?' is not the true laughter. No! he is a king, and he come when and how he like. He ask no person; he choose no time of suitability. He say, 'I am here.' ... Oh, friend John, it is a strange world, a sad world, a world full of miseries, and woes, and troubles; and yet when King Laugh come he make them all dance to the tune he play. Bleeding hearts, and dry bones of the churchyard, and tears that burn as they fall - all dance together to the music that he make with that smileless mouth of him. And believe me, friend John, that he is good to come, and kind. Ah, we men and women are like ropes drawn tight with strain that pull us different ways. Then tears come; and, like the rain on the ropes, they brace us up, until perhaps the strain become too great, and we break. But King Laugh he come like the sunshine, and he ease off the strain again; and we bear to go on with our labour, what it may be.