You cannot deny the primary purpose of eyes is to see, even though a percentage of people are physically blind. Nor can you refute that legs are meant for walking, even though amputees are among us. We must not mix up something’s essence (or purpose) with its accidents (or properties).
Thus, my statement that ears are for hearing is not made untrue because some people are deaf.
In the same way, to say the conjugal act is ordered primarily toward procreation is not rendered false by heterosexual couples unable to conceive.[click to continue...]