Eternity is a long time, especially towards the end.

I think the next century will be the century of complexity.

The human capacity for guilt is such that people can always find ways to blame themselves

However difficult life may seem, there is always something you can do and succeed at.

Observations indicate that the universe is expanding at an ever-increasing rate. It will expand forever, getting emptier and darker. Although the universe doesn’t have an end, it had a beginning in the Big Bang. One might ask what is before that but the answer is that there is nowhere before the Big Bang just as there is nowhere south of the South Pole.

If time travel is possible, where are the tourists from the future?

Save water. Shower with your girlfriend.