We know next to nothing of what we're going to know in 20 or 50 years.

Human life without death would be something other than human; consciousness of mortality gives rise to out deepest longings and greatest accomplishments.

Is it possible to covet a much longer life for one's self and be as devoted to the well-being of the next generation? It's a long argument.

Shallow are the souls that have forgotten how to shudder

Even if certain rogue countries do things we wish nobody did, it doesn't necessarily mean that their foolishness should justify our following suit.

In the case of abortion, one pits the life of the fetus against the interests of the pregnant woman.

It's very hard to make arguments about the effects of cloning on family relations if family relations are in tatters.