As seismologists gained more experience from earthquake records, it became obvious that the problem could not be reduced to a single peak acceleration. In fact, a full frequency of vibrations occurs.

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.

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.

The rose does not bloom without thorns. True, but would that the thorns did not outlive the rose.

Most loss of life and property has been due to the collapse of antiquated and unsafe structures, mostly of brick and other masonry. ... There is progress of California toward building new construction according to earthquake-resistant design. We would have less reason to ask for earthquake prediction if this was universal.

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.

it is good to have measured myself, to recognize my limitations.