Real power is control. Knowing that you can do anything...and not doing it only because you can.

What I do not want to write is didactic political tracts.

Humans may be the only creatures on Earth who spend significant time thinking about the fact that someday their lives will end.

For every path you choose, there is another you must abandon, usually forever.

The ecosystem of our world is a closed system: it would run out of gas, collapse of its own weight.

Archaeology is the anthropology of the past, and science fiction is the anthropology of the future.

Perhaps the thing that makes humans truly unique on Earth is that we are never satisfied with our situation; maybe that is what's taken us so far.