Is it possible that something can be harnessed for good, on the one hand, and for just the opposite, on the other? If we put our mind to it, we can problem think of many examples. Fire, for instance, can be used for cooking and heating when employed judiciously. At the same time, though, it could also be used as a tool for arsonists. Similarly, there are countless instances where knives can serve useful purposes and many others where they can wreak havoc. Some would contend that nuclear energy can be both beneficial and destructive, depending on how it’s used. And on and on it goes for numerous other devices, substances and technologies.