What Science Cannot Discover, Mankind Cannot Know.

Ethics Is In Origin The Art Of Recommending To Others The Sacrifices Required For Cooperation With Oneself.

I Conclude That, While It Is True That Science Cannot Decide Questions Of Value, That Is Because They Cannot Be Intellectually Decided At All, And Lie Outside The Realm Of Truth And Falsehood. Whatever Knowledge Is Attainable, Must Be Attained By Scientific Methods; And What Science Cannot Discover, Mankind Cannot Know.

I Think We Ought Always To Entertain Our Opinions With Some Measure Of Doubt. I Shouldn't Wish People Dogmatically To Believe Any Philosophy, Not Even Mine.

I Think The Subject Which Will Be Of Most Importance Politically Is Mass Psychology... Its Importance Has Been Enormously Increased By The Growth Of Modern Methods Of Propaganda. Although This Science Will Be Diligently Studied, It Will Be Rigidly Confined To The Governing Class. The Populace Will Not Be Allowed To Know How Its Convictions Are Generated.

Even When The Experts All Agree, They May Well Be Mistaken.