The Growth Of Our Knowledge Is The

The Defence Of Democracy Must Consist In Making Anti-democratic Experiences Too Costly For Those Who Try Them; Much More Costly Than A Democratic Compromise

Psychologism Is, I Believe, Correct Only In So Far As It Insists Upon What May Be Called 'methodological Individualism' As Opposed To 'methodological Collectivism'; It Rightly Insists That The 'behaviour' And The 'actions' Of Collectives, Such As States Or Social Groups, Must Be Reduced To The Behaviour And To The Actions Of Human Individuals. But The Belief That The Choice Of Such An Individualist Method Implies The Choice Of A Psychological Method Is Mistaken.

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.'

Whenever A Theory Appears To You As The Only Possible One, Take This As A Sign That You Have Neither Understood The Theory Nor The Problem Which It Was Intended To Solve.

The History Of Science Is Everywhere Speculative. It Is A Marvelous Hiatory. It Makes You Proud To Be A Human Being.