Whenever We Propose A Solution To A

Every Genuine Test Of A Theory Is An Attempt To Falsify It, Or To Refute It.

I Think That We Shall Have To Get Accustomed To The Idea That We Must Not Look Upon Science As A 'body Of Knowledge,' But Rather As A System Of Hypotheses; That Is To Say, As A System Of Guesses Or Anticipations Which In Principle Cannot Be Justified, But With Which We Work As Long As They Stand Up To Tests, And Of Which We Are Never Justified In Saying That We Know They Are 'true' Or 'more Or Less Certain' Or Even 'probable.'

Reason Like Science, Grows By Way Of Mutual Criticism; The Only Possible Way Of Planning Its Growth Is To Develop Those Institutions That Safeguard. The Freedom Of Thought

Almost Everyone... Seems To Be Quite Sure That The Differences Between The Methodologies Of History And Of The Natural Sciences Are Vast. For, We Are Assured, It Is Well Known That In The Natural Sciences We Start From Observation And Proceed By Induction To Theory. And Is It Not Obvious That In History We Proceed Very Differently? Yes, I Agree That We Proceed Very Differently. But We Do So In The Natural Sciences As Well.

[the Aim Of Science Is] To Explain What So Far Has Taken To Be An Explicans, Such As A Law Of Nature. The Task Of Empirical Science Constantly Renews Itself. We May Go On Forever, Proceeding To Explanations Of A Higher And Higher Universality.