The latest tentacle of John Gray"s formidable Mars and Venus octopus deals with a topic near to the heart of almost everybody--dating. With a lot of insight and common sense, Gray tackles the hard and often messy business of finding "a soul mate." Without fear or favor, Mars and Venus on a Date dissects the dynamics between men and women and the five stages each relationship must pass through: attraction, uncertainty, exclusivity, intimacy, and, finally, engagement (for marriage, of course). Even though Mars and Venus on a Date isn"t The Rules by a long shot, the courtship it describes is surprisingly old-fashioned. It"s chock-full of things your mother might say: "Most people find or are found by their soul mates when they are not really looking." "The man should never talk more than the woman." But how to know if the person you"re with is your "soul mate?" Gray writes, "When our soul wants to marry our partner, it feels like a promise that we came into this world to keep." Which...