The Part An Actor Played On Stage

If There Are Four Equations And Only Three Variables, And No One Of The Equations Is Derivable From The Others By Algebraic Manipulation Then There Is Another Variable Missing.

If Capitalism Begins As The Practical Idealism Of The Aspiring Bourgeoisie, It Ends ... As An Orgy Of Materialism.

Sociology Should... Be Thought Of As A Science Of Action-of The Ultimate Common Value Element In Its Relations To The Other Elements Of Action.

Special Emphasis Should Be Laid On This Intimate Interrelation Of General Statements About Empirical Fact With The Logical Elements And Structure Of Theoretical Systems.

It Is Probably Safe To Say That All The Changes Of Factual Knowledge Which Have Led To The Relativity Theory, Resulting In A Very Great Theoretical Development, Are Completely Trivial From Any Point Of View Except Their Relevance To The Structure Of A Theoretical System.