What I wish is that people would look beyond the tribbles and see I've written some other books that I really would like people to notice. There's The Man Who Folded Himself, there's The Martian Child, which is about my son and the adoption. There's The War Against The Chtorr, which is my magnum opus, my great epic story.

Morality—like velocity—is relative. The determination of it depends on what the objects around you are doing. All one can do is measure one's position in relation to them; never can one measure one's velocity or morality in terms of absolutes.

Life is hard. Then you die. Then they throw dirt in your face. Then the worms eat you. Be grateful it happens in that order.

It's almost always dangerous to be right too soon.

The secret of the universe is this: The universe doesn't care. That part of the job is yours.

Understanding the laws of nature does not mean that we are immune to their operations.

The most useless job in the world is that of the critic. That is a prejudiced statement. I admit it. I'm prejudiced. I hate critics. ... And now, as the saying goes (yesterday, I couldn't even spell critik), and now I are one.