Questions Of Personal Priority, However Interesting They

We All Confidently Believe That There Are At Present, And Have Been From Time Immemorial, Many Worlds Of Life Besides Our Own. . . . [this] May Seem Wild, And Visionary; All I Maintain Is That It Is Not Unscientific.

The Life And Soul Of Science Is Its Practical Application, And Just As The Great Advances In Mathematics Have Been Made Through The Desire Of Discovering The Solution Of Problems Which Were Of A Highly Practical Kind In Mathematical Science, So In Physical Science Many Of The Greatest Advances That Have Been Made From The Beginning Of The World To The Present Time Have Been Made In The Earnest Desire To Turn The Knowledge Of The Properties Of Matter To Some Purpose Useful To Mankind.

Suppose That You Could Mark The Molecules In A Glass Of Water; Then Pour The Contents Of The Glass Into The Ocean And Stir The Latter Throughly So As To Distribute The Marked Molecules Uniformly Throughout The Seven Seas; If Then You Took A Glass Of Water Anywhere Out Of The Ocean, You Would Find In It About A Hundred Of Your Marked Molecules.

Although Mechanical Energy Is Indestructible, There Is A Universal Tendency To Its Dissipation, Which Produces Throughout The System A Gradual Augmentation And Diffusion Of Heat, Cessation Of Motion And Exhaustion Of The Potential Energy Of The Material Universe

Do Not Imagine That Mathematics Is Hard And Crabbed, And Repulsive To Common Sense. It Is Merely The Etherealization Of Common Sense.