It Is Also A Good Rule Not

A Hundred Thousand Million Stars Make One Galaxy; A Hundred Thousand Million Galaxies Make One Universe. The Figures May Not Be Very Trustworthy, But I Think They Give A Correct Impression.

If Someone Points Out To You That Your Pet Theory Of The Universe Is In Disagreement With Maxwell's Equations - Then So Much The Worse For Maxwell's Equations. If It Is Found To Be Contradicted By Observation - Well, These Experimentalists Do Bungle Things Sometimes. But If Your Theory Is Found To Be Against The Second Law Of Thermodynamics I Can Give You No Hope; There Is Nothing For It But To Collapse In Deepest Humiliation.

Life Would Be Stunted And Narrow If We Could Feel No Significance In The World Around Us Beyond That Which Can Be Weighed And Measured With The Tools Of The Physicist Or Described By The Metrical Symbols Of The Mathematician.

The Universe Will Finally Become A Ball Of Radiation, Becoming More And More Rarified And Passing Into Longer And Longer Wave-lengths. The Longest Waves Of Radiation Are Hertzian Waves Of The Kind Used In Broadcasting. About Every 1500 Million Years This Ball Of Radio Waves Will Double In Diameter; And It Will Go On Expanding In Geometrical Progression For Ever. Perhaps Then I May Describe The End Of The Physical World As-one Stupendous Broadcast.

In The Most Modern Theories Of Physics Probability Seems To Have Replaced Aether As "the Nominative Of The Verb 'to Undulate'."