As the practical value of altering consciousness becomes recognized, procedures to effect these alterations will become increasingly ordinary and unremarkable. The whole concept of changing states of consciousness will cease to have a threatening or exotic aspect.

You think you can destroy the planet? What intoxicating vanity. . . . . We've been residents here for the blink of an eye. If we're gone tomorrow, the earth will not miss us.

Environmentalism needs to be absolutely based in objective and verifiable science, it needs to be rational, and it needs to be flexible. And it needs to be apolitical. To mix environmental concerns with the frantic fantasies that people have about one political party or another is to miss the cold truth - that there is very little difference between the parties, except a difference in pandering rhetoric.

The planet has survived everything, in its time. It will certainly survive us.

Science is nothing more than a method of inquiry. The method says an assertion is valid - and will be universally accepted - only if it can be reproduced by others, and thereby independently verified. The impersonal rigor of the method has produced enormously powerful results for 400 years. The scientific method is utterly apolitical. A truth in science is verifiable whether you are black or white, male or female, old or young. It’s verifiable whether you know the experimenter, or whether you don’t.

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.

Having wallowed in a delightful orgy of anti-French sentiment, having deplored and applauded the villains themselves, having relished the foibles of bankers, railwaymen, diplomats, and police, the public was now ready to see its faith restored in the basic soundness of banks, railroads, government, and police.