It was during my enchanted days of travel that the idea came to me, which, through the years, has come into my thoughts again and again and always ha….

The earth is large and old enough to teach us modesty..

The well-marked path to knowledge is open to anyone willing to make the effort to follow it, though no one will ever quite reach its end..

For a billion years the patient earth amassed documents and inscribed them with signs and pictures which lay unnoticed and unused. Today, at last, th….