Can People Show a Measure of Restraint?

Chet Raymo's passage "A Measure of Restraint" proves the point that the human race in general needs to show restraint when it makes new discoveries in the scientific world, or else suffer horrible consequences.  I completely agree with his opinion, but I also think it's impossible for humans to resist progress.  It's natural for us to take risks.  The first cave man who ever hunted was taking a risk by attacking an animal that could probably eat him, but if no one was ever willing to take that risk, we would be a weak and malnourished race!  I know that's an extreme example, but anything unknown is a risk simply because the consequences are unknown!  If humans showed restraint when dealing with new discoveries, the world would be much less advanced, or civilized even!  While Raymo is probably right about showing restraint with genetic engineering, it could be the cure to many diseases, maybe even cancer.  I also agree that it could go completely wrong and end up causing really bad consequences, but my point is no matter what the outcome, people can't resist taking the risk.