A subtle thought that is in error may yet give rise to fruitful inquiry that can establish truths of great value.

One thought that occurs to me is that men will continue to withdraw from nature in order to create an environment that will suit them better.

When asked for advice by beginners. Know your ending, I say, or the river of your story may finally sink into the desert sands and never reach the sea.

Computerization eliminates the middleman

People think of education as something that they can finish.

Life is glorious when it is happy; days are carefree when they are happy; the interplay of thought and imagination is far superior to that of muscle and sinew.

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