"I think computer viruses should count as life. I think it says something about human nature that the..." — Stephen Hawking

Work gives you meaning and purpose and life is empty without it.

Success in creating AI would be the biggest event in human history. Unfortunately, it might also be the last, unless we learn how to avoid the risks.

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

Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out.