I Feel That One Species,

Every Politician, Clergyman, Educator, Or Physician, In Short, Anyone Dealing With Human Individuals, Is Bound To Make Grave Mistakes If He Ignores These Two Great Truths Of Population Zoology: (1) No Two Individuals Are Alike, And (2) Both Environment And Genetic Endowment Make A Contribution To Nearly Every Trait.

Wherever We Look At The Living Biota … Discontinuities Are Overwhelmingly Frequent…the Discontinuities Are Even More Striking In The Fossil Record. New Species Usually Appear In The Fossil Record Suddenly, Not Connected With Their Ancestors By A Series Of Intermediates.

The History Of Science Knows Scores Of Instances Where An Investigator Was In The Possession Of All The Important Facts For A New Theory But Simply Failed To Ask The Right Questions.

The Most Consequential Change In Man's View Of The World, Of Living Nature And Of Himself Came With The Introduction, Over A Period Of Some 100 Years Beginning Only In The 18th Century, Of The Idea Of Change Itself, Of Change Over Periods Of Time: In A Word, Of Evolution.

On Earth, Among Millions Of Lineages Or Organisms And Perhaps 50 Billion Speciation Events, Only One Led To High Intelligence ; This Makes Me Believe Its Utter Improbablity.