If one introduces the concept of energy of an earthquake then that is a theoretically derived quantity.

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.

Nothing is less predictable than the development of an active scientific field.

Don't wait for extraordinary circumstance to do good; try to use ordinary situations.

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.

Only fools, liars, and charlatans predict earthquakes

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

Spring makes everything young again except man.

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

I was lucky because logarithmic plots are a device of the devil.

I would walk - not run - to the nearest seismograph.

We are the ones we've been waiting for.

Environment is no one's property to destroy

Wonders and signs are miracles of God.

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We go to Europe to be Americanized.

The best things are placed between extremes.

When I met Apple, I made it very clear that I am an old punk and I have never done commercials or been sponsored. And I wasn't after their money.

History is full of delightful reversals, where the opposite of what one predicts comes true.

I am willing to make any part of my life public, if it will help others.

Humility is an ornament which attracts Krishna's heart. Beginning of all knowledge comes from humility.