W hat Christianity shares with Judaism (and Islam, for that matter) is a belief that God created all things (though all three religions understand God differently). We are creatures. We owe our being, our existence, to Him. We are stewards of His creation, stewards, even, of our own bodies. Acknowledgement of God’s creative power leads to religious awe, a sense of the sacred. This means that each creature/creation has a nature, a manufacturer’s (God’s) instruction manual. Masculinity and femininity are aspects of that nature for human beings. When belief in God becomes irrelevant, we can throw away this instruction manual and refuse to see ourselves as a creature who has responsibilities to God and to society. To understand ourselves, we need to start at the beginning. What kind of being are we? The traditional answer–originating with the Greeks, continuing in the Middle Ages, and persisting into our own time -- and the answer given by common sense intuition -- is ...