Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric.

All who are not lunatics are agreed about certain things. That it is better to be alive than dead, better to be adequately fed than starved, better to be free …

It is sometimes maintained that racial mixture is biologically undesirable. There is no evidence whatever for this view. Nor is there, apparently, any reason t…

Can a society in which thought and technique are scientific persist for a long period, as, for example, ancient Egypt persisted, or does it necessarily contain…

If I have a thousand ideas and only one turns out to be good, I am satisfied.

First were the thick stone walls, the arches, then the domes and vaults - of the architect, searching out for wider spaces. Now it is concrete-reinforced that …

The good thing about reinventing the wheel is that you can get a round one.