You know, at times like this one feels, well, perhaps extinct animals should be left extinct.

All human behavior has a reason. All behavior is solving a problem.

We think we know what we are doing. We have always thought so.

You are the reason why he exists on this earth. You don't have the right to abandon him just because he's inconvenient or has trouble in school.

In any case, you read with exasperation or amusement the multiple errors in a story-and then turn the page to national or international affairs, and read with renewed interest as if the rest of the newspaper was somehow more accurate about far-off Palestine than it was about the story you just read. You turn the page, and forget what you know.

The past history of human belief is a cautionary tale. We have killed thousands of our fellow human beings because we believed they had signed a contract with the devil, and had become witches. We still kill more than a thousand people each year for witchcraft. In my view, there is only one hope for humankind to emerge from what Carl Sagan called "the demon-haunted world" of our past. That hope is science.

Malcolm: A karate master does not kill people with his bare hands. He does not lose his temper and kill his wife. The person who kills is the person who has no discipline, no restraint, and who has purchased his power in the form of a Saturday night special. And that is why you think that to build a place like this is simple. Hammond: It was simple. Malcolm: Then why did it go wrong?