The Rung Of A Ladder Was Never

Within The Last Fifty Years, The Extraordinary Growth Of Every Department Of Physical Science Has Spread Among Us Mental Food Of So Nutritious And Stimulating A Character That A New Ecdysis Seems Imminent.

It Is Not To Be Forgotten That What We Call Rational Grounds For Our Beliefs Are Often Extremely Irrational Attempts To Justify Our Instincts.

The Struggle For Existence Holds As Much In The Intellectual As In The Physical World. A Theory Is A Species Of Thinking, And Its Right To Exist Is Coextensive With Its Power Of Resisting Extinction By Its Rivals.

I Have Never Been Able To Understand Why Pigeon-shooting At Hurlingham Should Be Refined And Polite, While A Rat-killing Match In Whitechapel Is Low.

It Seems Safe To Look Forward To The Time When The Conception Of Attractive And Repulsive Forces, Having Served Its Purpose As A Useful Piece Of Scientific Scaffolding, Will Be Replaced By The Deduction Of The Phenomena Known As Attraction And Repulsion, From The General Laws Of Motion.