A soul isn't given for free. The races of men fight each other to the death for the honor of being recognized as human beings, with souls.
To survive, humans will work together. Accept each other. For a moment, we are all equal. Backs against the wall, human beings are at their finest.
When a man resists sin on human motive only, he will not hold out long.
There are no truer choices than those made in crisis, choices made without judgment.
The dissemination of advanced implantable technology will likely be just as ruthlessly democratic as the ailments it is destined to treat. Meaning that, someday soon, we may have a new class of very smart, very fast people - yesterday's disabled and elderly.