Spring Makes Everything Young Again Except Man.

If One Introduces The Concept Of Energy Of An Earthquake Then That Is A Theoretically Derived Quantity.

The Most Remarkable Feature About The Magnitude Scale Was That It Worked At All And That It Could Be Extended On A Worldwide Basis. It Was Originally Envisaged As A Rather Rough-and-ready Procedure By Which We Could Grade Earthquakes. We Would Have Been Happy If We Could Have Assigned Just Three Categories, Large, Medium, And Small; The Point Is, We Wanted To Avoid Personal Judgments. It Actually Turned Out To Be Quite A Finely Tuned Scale.

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.

Don't Wait For Extraordinary Circumstance To Do Good; Try To Use Ordinary Situations.

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.