"The universe is a cruel and unforgiving place."

"The greatest achievement of the human race would be to understand the universe."

"However difficult life may seem, there is always something you can do and succeed at. It matters that you don't just give up."

"There is no God. No one created the universe and no one directs our destiny."

"The human failing I would most like to correct is aggression. It may have had survival advantage in caveman days, to get more food, territory or partner with whom to reproduce, but now it threatens to…"