An inexplicable fact is infinitely preferable to an incomprehensible mystery.

With all our mastery over the powers of Nature we have adhered to the view that the struggle for existence is a permanent and necessary condition of life.

An honest money system is the only alternative.

[The blame for the future 'plight of civilization] must rest on scientific men, equally with others, for being incapable of accepting the responsibility for the profound social upheavals which their own work primarily has brought about in human relationships.

Some of the beliefs and legends bequethed to us by Antquity are so universally and firmly established that we have become accustomed to consider them as being almost as ancient as humanity itself. Nevertheless we are tempted to inquire how far the fact that some of these beliefs and legends have so many features in common is due to chance, and wether the similarity between them may not point to the exestience of an ancient, totally unknown and unsuspected civilization of which all other traces have disappeared.

Man cannot influence in this respect the atomic forces of Nature.

[The human control of atomic energy could] virtually provide anyone who wanted it with a private sun of his own.