Simple Statements Are To Be Prized More

There Is No History, Only Histories.

It Is Easy To Obtain Confirmations, Or Verifications, For Nearly Every Theory-if We Look For Confirmations. Confirmations Should Count Only If They Are The Result Of Risky Predictions... A Theory Which Is Not Refutable By Any Conceivable Event Is Non-scientific. Irrefutability Is Not A Virtue Of A Theory (as People Often Think) But A Vice. Every Genuine Test Of A Theory Is An Attempt To Falsify It, Or Refute It.

It Is Impossible To Speak In Such A Way That You Cannot Be Misunderstood.

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.

But Some Of These Theories Are So Bold That They Can Clash With Reality: They Are The Testable Theories Of Science. And When They Clash, Then We Know That There Is A Reality; Something That Can Inform Us That Our Ideas Are Mistaken.