This idea [standardized time zones] was first advanced and fought for by Sandford Fleming of Canada and Charles F. Dowd of the United States. I mention them chiefly because like so many benefactors of mankind they have been rewarded by total obscurity.

To surrender to ignorance and call it God has always been premature, and it remains premature today.

God, how that stings! I've spent a lifetime loving science fiction and now I find that you must expect nothing of something that's just science fiction.

It is change continuing change, inevitable change that is the dominant factor in society today.

Democracy cannot survive overpopulation.

And above all things, never think that you're not good enough yourself. A man should never think that. My belief is that in life people will take you at your own reckoning.

Of course there are worlds. Millions of them! Every star you see has worlds, and most of those you don't see.