Pierre Curie, a brilliant scientist, happened to marry a still more brilliant one-Marie, the famous Madame Curie-and is the only great scientist in history who is consistently identified as the husband of someone else.

To all my gentle readers who have treated me with love for over 30 years, I must say farewell. It has always been my ambition to die in harness with my head face down on a keyboard and my nose caught between two of the keys, but that's not the way it worked out. I have had a long and happy life and I have no complaints about the ending, thereof, and so farewell - farewell.

We're forever teetering on the brink of the unknowable, and trying to understand what can't be understood.

They don't want equal time - they want all the time there is.

Self-education is a continuing source of pleasure to me, for the more I know, the fuller my life is and the better I appreciate my own existence

Having no unusual coincidence is far more unusual than any coincidence could possibly be.

Many a prophecy, by the mere force of its being believed, is transmuted to fact.