Inspect every piece of pseudoscience and you will find a security blanket.

And [Asimov]'ll sign anything, hardbacks, softbacks, other people's books, scraps of paper. Inevitably someone handed him a blank check on the occasion when I was there, and he signed that without as much as a waver to his smile — except that he signed: 'Harlan Ellison.

In the presence of total Darkness, the mind finds it absolutely necessary to create light.

Science is a set of rules to keep us from telling lies to each other. All scientists really have is a reputation for telling the truth.

There are no nations! There is only humanity. And if we don't come to understand that right soon, there will be no nations, because there will be no humanity.

I never considered myself a patriot. I like to think I recognize only humanity as my nation.

The Earth faces environmental problems right now that threaten the imminent destruction of civilization and the end of the planet as a livable world. Humanity cannot afford to waste its financial and emotional resources on endless, meaningless quarrels between each group and all others. there must be a sense of globalism in which the world unites to solve the real problems that face all groups alike.