We Never Know What We Are Talking

Science Is Not A System Of Certain, Or -established, Statements; Nor Is It A System Which Steadily Advances Towards A State Of Finality... And Our Guesses Are Guided By The Unscientific, The Metaphysical (though Biologically Explicable) Faith In Laws, In Regularities Which We Can Uncover-discover. Like Bacon, We Might Describe Our Own Contemporary Science-'the Method Of Reasoning Which Men Now Ordinarily Apply To Nature'-as Consisting Of 'anticipations, Rash And Premature' And As 'prejudices'.

I Have Come To The Conclusion That Darwinism Is Not A Testable Scientific Theory, But A Metaphysical Research Programme.

We Never Know What We Are Talking About.

We Know A Great Deal, But Our Ignorance Is Sobering And Boundless. With Each Step Forward, With Each Problem Which We Solve, We Not Only Discover New And Unsolved Problems, But We Also Discover That Where We Believed That We Were Standing On Firm And Safe Ground, All Things Are, In Truth, Insecure And In A State Of Flux.

Our Aim Must Be To Make Our Successive Mistakes As Quickly As Possible. To Speed Up Evolution.