What sex is, we don't know, but it must be some sort of fire. For it always communicates a sense of warmth, of glow. And when this glow becomes a pure shine, then we feel the sense of beauty. We all have the fire of sex slumbering or burning inside us. If we live to be ninety, it is still there. Or, if it dies, we become one of those ghastly living corpses which are unfortunately becoming more numerous in the world.
Life is serious all the time, but living cannot be. You may have all the solemnity you wish in your neckties, but in anything important (such as sex, death, and religion), you must have mirth or you will have madness.