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

My main point today is that usually one gets what one expects, but very rarely in the way one expected it.

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

The laboratory routine, which involves a great deal of measurement, filing, and tabulation, is either my lifeline or my chief handicap, I hardly know which.

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

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.

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