Refining is inevitable in science when you have made measurements of a phenomenon for a long period of time.

The usual designation of the magnitude scale to my name does less than justice to the great part that Dr. Gutenberg played in extending the scale to apply to earthquakes in all parts of the world.

Lately there have been complaints that the use of the magnitude scale is confusing, or at least the reporting of magnitudes in the newspapers 'confuses the public.

No joy in nature is so sublimely affecting as the joy of a mother at the good fortune of a child.

There is nothing more beautiful than cheerfulness in an old face, and among country people it is always a sign of a well-regulated life.

I have a sense of humor; but over the years that sense has developed one blind spot. I can no longer laugh at ignorance or stupidity. Those are our chief enemies, and it is dangerous to make fun of them.

It is a common remark that men talk most who think least; just as frogs cease their quacking when a light is brought to the water-side.