There are some interesting comments on this thread, and the discussion has been predominantly a mature one. Here are a few of my thoughts. The Force is what gives a Jedi his power--OB-1, ANH. Life creates it, makes it grow--Yoda, ESB. This tells me that the Jedi have a vested interest in the continuation of life, which is not possible if you forbid an important step in the life cycle. If the Jedi are not participating in the perpetuation of life, and living things, they are making no contribution to the Force. The key is to go about it responsibly. Forbidding sex offhand just isn't the right way to go about it, it will create a problem. By forbidding it, there is the chance that some will find alternatives that are unhealthy. The Jedi Order is made up of living beings. Since members of the Jedi Order are expected to live up to a high standard, and I believe that they are for the most part successful. Why would it not be a good idea to bring into being offspring that originates from the galaxies finest? Take this arguement in a more down-to-earth setting. If a human being is of such strong moral character, in a close relationship with God, isn't it a good idea to introduce into the population offspring who are likely to be similarly inclined? Wouldn't God approve of offspring of such genetic stock, in the interests of bringing more of the population into a spiritual relationship with him? So I believe they are allowed to, furthermore, I think that the Order would have teachings regarding how to go about it in a responsible manner. Finally, if George Lucas has said they are able to, then that settles that question for me.