Every Discovery Contains An Irrational

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.

Ignorance Is Not A Simple Lack Of Knowledge But An Active Aversion To Knowledge, The Refusal To Know, Issuing From Cowardice, Pride, Or Laziness Of Mind.

We Never Know What We Are Talking About.

To Give A Causal Explanation Of An Event Means To Deduce A Statement Which Describes It, Using As Premises Of The Deduction One Or More Universal Laws, Together With Certain Singular Statements, The Initial Conditions ... We Have Thus Two Different Kinds Of Statement, Both Of Which Are Necessary Ingredients Of A Complete Causal Explanation.

We Must Plan For Freedom, And Not Only For Security, If For No Other Reason Than Only Freedom Can Make Security More Secure.